What is the Black Diamond Championship. How many teams are participating. Which divisions are included in the tournament. When and where is the event taking place.
Overview of the Black Diamond Championship
The Black Diamond Championship is a prestigious basketball tournament featuring multiple age divisions for both boys and girls. This competitive event brings together talented young athletes from across the region to showcase their skills and compete for top honors. With a diverse range of age groups represented, the tournament offers exciting matchups and opportunities for players to test their abilities against top-tier competition.
Tournament Structure and Divisions
The Black Diamond Championship is structured into several divisions based on gender and birth year. This organization ensures fair competition among players of similar age and skill levels. Here’s a breakdown of the divisions and the number of teams participating in each:
Girls Divisions:
- 2024 Girls: 30 teams
- 2025 Girls: 19 teams
- 2026 Girls: 9 teams
- 2027 Girls: 16 teams
- 2028 Girls: 10 teams
- 2029 Girls: 10 teams
- 2030 Girls: 5 teams
Boys Divisions:
- 2024 Boys: 13 teams
- 2025 Boys: 6 teams
- 2026 Boys: 12 teams
- 2027 Boys: 4 teams
- 2028 Boys: 6 teams
- 2029 Boys: 4 teams
- 2030 Boys: 5 teams
- 2031 Boys: 4 teams
The varying number of teams in each division reflects the popularity and competitiveness of different age groups. The 2024 Girls division boasts the highest participation with 30 teams, while some of the younger divisions have fewer teams, allowing for more focused competition.
Scheduling and Venue Information
Proper scheduling is crucial for a smooth-running tournament. The Black Diamond Championship organizers have put significant effort into creating a comprehensive schedule that accommodates all participating teams. Important details regarding scheduling include:
- Schedules are available for viewing on the tournament website
- Teams can search for their specific schedule
- Divisions are clearly separated for easy navigation
- Recent updates have been made to some venue locations
Are venue changes common in basketball tournaments? While not frequent, venue adjustments can occur due to various factors such as facility availability, weather conditions, or logistical considerations. In the case of the Black Diamond Championship, participants were notified of some venue and location updates, particularly for the Sunday games. This proactive communication ensures that teams, players, and spectators have the most up-to-date information for a seamless tournament experience.
Tournament Features and Resources
The Black Diamond Championship offers several features and resources to enhance the experience for participants and followers of the event:
- Mobile App: A dedicated Ohiobasketball.com app is available for download, providing easy access to tournament information on-the-go.
- Champions Section: Recognizing the top performers in each division.
- Statistics Leaders: Highlighting standout players and their achievements throughout the tournament.
- Standings: Regularly updated tables showing team rankings within each division.
How do these features benefit tournament participants and spectators? The mobile app allows for quick access to schedules and updates, ensuring everyone stays informed about game times and locations. The champions and statistics leaders sections provide recognition for top-performing teams and individuals, adding an extra layer of excitement to the competition. Standings help teams and fans track progress throughout the tournament, building anticipation for crucial matchups and playoff scenarios.
Understanding Tournament Statistics
The Black Diamond Championship utilizes a comprehensive set of statistics to evaluate team and player performance. These statistics provide valuable insights into the competitive landscape of each division. Key statistical categories include:
- W/L: Wins and Losses
- PDO: Point Differential Overall
- PD: Point Differential
- PDT: Point Differential Tiebreaker
- PS: Points Scored
- PA: Points Allowed
- PFAVG: Points For Average
- APS: Average Points Scored
- SR: Scoring Rate
- S%: Shooting Percentage
- PR: Possession Rate
- P%: Possession Percentage
Why are these statistics important in basketball tournaments? These metrics provide a comprehensive view of a team’s performance beyond just wins and losses. They help identify strengths and weaknesses, showcase offensive and defensive capabilities, and can be crucial in determining tiebreakers or seeding for playoff rounds. For players, coaches, and scouts, these statistics offer valuable data for analysis and improvement.
Importance of Age-Based Divisions in Youth Basketball
The Black Diamond Championship’s structure, with its numerous age-based divisions, reflects a common and important practice in youth basketball. This approach offers several benefits:
- Fair Competition: Players compete against others of similar physical development and skill level.
- Skill Development: Age-appropriate competition allows players to develop skills at a suitable pace.
- Confidence Building: Success against peers can boost players’ confidence and enjoyment of the sport.
- Accurate Talent Assessment: Scouts and coaches can better evaluate players’ abilities within their age group.
- Long-term Athlete Development: Age-based divisions support a structured approach to player growth over time.
How does this divisional structure impact player development? By competing against peers of similar age and development, young athletes can focus on honing their skills without being overwhelmed by significant physical disparities. This structure also allows for more accurate talent identification and provides a clear pathway for progression through the age groups, supporting long-term athlete development principles.
The Role of Technology in Modern Basketball Tournaments
The Black Diamond Championship leverages technology to enhance the tournament experience for all involved. Key technological elements include:
- Online Schedule Access: Easy-to-navigate digital schedules for all divisions.
- Mobile App Integration: Real-time updates and information accessible on smartphones.
- Digital Standings and Statistics: Instantly updated leaderboards and player stats.
- Communication Tools: Efficient methods for disseminating important updates to participants.
How does technology improve the tournament experience? Digital tools streamline information delivery, reduce errors in scheduling and scoring, and provide instant access to crucial data. This technological integration enhances the experience for players, coaches, parents, and fans by keeping everyone informed and engaged throughout the event. It also simplifies tournament management, allowing organizers to run a more efficient and enjoyable competition.
Preparing for Success in Youth Basketball Tournaments
Participating in a high-level event like the Black Diamond Championship requires thorough preparation. Here are key aspects that teams and players should focus on:
- Physical Conditioning: Ensuring players are in top shape for multiple games.
- Skill Refinement: Honing fundamental and advanced basketball skills.
- Team Chemistry: Building strong on-court relationships and communication.
- Mental Preparation: Developing strategies for handling pressure and maintaining focus.
- Logistical Planning: Organizing travel, accommodation, and game-day routines.
What strategies can teams employ to maximize their tournament performance? Successful teams often emphasize balanced preparation, focusing not just on basketball skills but also on team bonding, mental toughness, and proper rest and nutrition. Coaches might implement tournament-specific practice scenarios, such as playing multiple games in a day or adapting to different styles of play. Additionally, studying potential opponents and developing flexible game plans can give teams a competitive edge in tournament settings.
The Impact of Youth Basketball Tournaments on Player Development
Events like the Black Diamond Championship play a crucial role in the development of young basketball players. These tournaments offer unique opportunities and challenges that contribute to a player’s growth both on and off the court:
- Exposure to Diverse Playing Styles: Facing teams from different regions broadens players’ basketball IQ.
- High-Pressure Situations: Tournament games help players develop mental toughness and decision-making skills under pressure.
- Team Bonding: Extended time together during tournaments strengthens team chemistry and camaraderie.
- Individual Skill Showcase: Players have opportunities to demonstrate their abilities in front of coaches and scouts.
- Learning from Defeat: Tough competition teaches resilience and the value of learning from losses.
How do these experiences translate to long-term player development? The intense, competitive nature of tournaments like the Black Diamond Championship accelerates player growth by condensing challenges and learning opportunities into a short timeframe. Players often return from such events with increased confidence, a better understanding of their strengths and weaknesses, and renewed motivation to improve. These tournaments also provide valuable experiences in time management, dealing with travel fatigue, and maintaining focus over multiple games – skills that benefit athletes in their future basketball careers and beyond.
The Black Diamond Championship, with its diverse age groups and comprehensive structure, exemplifies the positive impact that well-organized youth basketball tournaments can have on player development. By providing a platform for competition, skill showcase, and personal growth, events like this play a vital role in shaping the future of basketball talent.
Black Diamond Championship – Schedule
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Please double-check your schedule for Sunday. Some venues and locations have been updated for the Black Diamond Championship.
5/6/2023 6:30 PM
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Click on a division below or search for a team to view the schedule.
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2024 GIRLS
(30 teams)
2025 GIRLS
(19 teams)
2026 Girls
(9 teams)
2027 GIRLS
(16 teams)
2028 GIRLS
(10 teams)
2029 Girls
(10 teams)
2030 Girls
(5 teams)
2024 BOYS
(13 teams)
2025 BOYS
(6 teams)
2026 Boys
(12 teams)
2027 BOYS
(4 teams)
2028 BOYS
(6 teams)
2029 BOYS
(4 teams)
2030 Boys
(5 teams)
2031 BOYS
(4 teams)
CHAMPIONS
STATISTIC LEADERS
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Standings
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PointDifferenceCommonOpponents != null ? $parent.PointDifferenceCommonOpponents : ‘-‘” title=”Points Differential (Common Opponents)”/>
PointsScoredAverage != null ? $parent.PointsScoredAverage : ‘-‘” title=”PointsF/(PointsF+PointsA)”/>
PointPercentage != null ? $parent.PointPercentage : ‘-‘” title=”Point Percentage”/>
No pool found for this division.
* Game(s) won’t count against standings
Division Standings
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* Games won’t count against standings
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All event related questions should be directed to Tucker Neale at [email protected] or call 1-833-642-2255.
Girls 2022-2023 Schedule – STEPS Lacrosse
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Girls 2022-2023 Schedulecshoulberg2022-11-16T13:21:47-05:00
2024 Blue and White Teams
Indoor Practice Schedule
ISP – Randolph, NJ
Wednesdays: 8-9pm
9.21.22 – 3.8.23
(Off 11.23, 11.
30, 12.7, 12.14, 12.21, 12.28, 1.4)
Outdoor Fall Practices – Black River Fields, Chester NJ
Sundays – Oct. 9th, 16th, 23rd – 4:00 – 5:30 PM
(Rain Date Oct. 30th)
Fall Tournaments
Primetime – Nov. 5
Cedar Lane Park, Bel Air, MD
Website: HERE
Navy Rivalry Challenge – Nov. 6
U.S. Naval Academy, Annapolis, MD
Website: HERE
Fall Draw – Nov. 12
Diamond Nation, Flemington, NJ
Website: HERE
Lax for the Cure – Nov. 13
New Egypt, NJ
Website: HERE
Presidents Cup – Nov. 18, 19, 20
Dallas, TX
Stay-To-Play: Hotels HERE
Website: HERE
Summer Practice Schedule
Black River Fields, Chester
Time: TBA
Dates: TBA
Summer Tournaments
Live Love Lax – June 10 & 11
Maryland Area
Stay-to-Play Hotels: Coming Soon
Website: HERE
IWLCA Champions Cup – June 16, 17, 18
Boyds and Olney, MD
Stay-to-Play Hotels: HERE
Website: HERE
Lax for the Cure – June 23 & 24
New Egypt, NJ
Website: HERE
2025 Navy and Carolina Teams
Indoor Practice Schedule
ISP – Randolph, NJ
Wednesdays 8-9pm
9.
21.22 – 3.8.23
(Off 11.23, 11.30, 12.7, 12.14, 12.21, 12.28, 1.4)
Outdoor Fall Practices – Black River Fields, Chester NJ
Sundays – Oct. 9th, 16th, 23rd – 4:00 – 5:30 PM
(Rain Date Oct. 30th)
Fall Tournaments
Primetime – Nov. 5
Cedar Lane Park, Bel Air, MD
Website: HERE
Navy Rivalry Challenge – Nov. 6
U.S. Naval Academy, Annapolis, MD
Website: HERE
Fall Draw – Nov. 12
Diamond Nation, Flemington, NJ
Website: HERE
Lax for the Cure – Nov. 13
New Egypt, NJ
Website: HERE
Presidents Cup – Nov. 18, 19, 20
Dallas, TX
Stay-To-Play Hotels: HERE
Website: HERE
Summer Practice Schedule
Black River Fields, Chester
Time: TBA
Dates: TBA
Summer Tournaments
Live Love Lax – June 10 & 11
Maryland Area
Stay-to-Play Hotels: HERE
Website: HERE
IWLCA Champions Cup – June 16, 17, 18
Boyds, Olney MD
Stay-to-Play Hotels: HERE
Website: HERE
Lax for the Cure – June 23 & 24
New Egypt Area, NJ
Website: HERE
G8 – July 7, 8, 9 (specific dates TBA)
Capelli Sports Complex, Tinton Falls, NJ
Website: HERE
Maryland Cup – July 15 & 16
Calvert Regional Park, North East, MD
Stay-To-Play Hotels: HERE
Website: HERE
2026 Blue and White Teams
Indoor Practice Schedule
ISP – Randolph, NJ
Wednesdays 7-8 PM
9.
21.22 – 3.8.23
(Off 11.23, 11.30, 12.7, 12.14, 12.21, 12.28, 1.4)
Outdoor Fall Practices – Black River Fields, Chester NJ – HIGHLANDS RIDGE FIELD
Sundays – Oct. 9th, 16th, 23rd – 4:00 – 5:30 PM
(Rain Date Oct. 30th)
Fall Tournaments
Platinum Games – Nov. 6
Diamond Nation, Flemington, NJ
Website: HERE
Lax for the Cure – Nov. 12
New Egypt, NJ
Website: HERE
Level 9 – Nov. 19
Downington, PA
Website: HERE
Live Love Lax – Nov. 20
DE Turf Sports Complex, Frederica, DE
Stay-To-Play Hotels: HERE
Website: HERE
Summer Practice Schedule
Black River Fields, Chester
Time: TBA
Dates: TBA
Summer Tournaments
Live Love Lax – June 10 & 11
Maryland Area
Stay-to-Play Hotels: HERE
Website: HERE
IWLCA Champions Cup – June 16, 17, 18
Boyds and Olney, MD
Stay-to-Play Hotels: HERE
Website: HERE
Lax for the Cure – June 24 & 25
New Egypt Area, NJ
Website: HERE
G8 – July 7, 8, 9 (specific dates TBA)
Capelli Sports Complex, Tinton Fall, NJ
Website: HERE
US Nationals – July 11 & 12
DE Turf Sports Complex, Frederica, DE
Stay-To-Play: Hotels Coming Soon
Website: HERE
2027 Navy and Carolina Teams
Indoor Practice Schedule
ISP – Randolph, NJ
Wednesdays 7-8pm
9.
21.22 – 3.8.23
(Off 11.23, 11.30, 12.7, 12.14, 12.21, 12.28, 1.4)
Outdoor Fall Practices – Black River Fields, Chester NJ
Sundays – Oct. 9th, 16th, 23rd – 2:30 – 4:00 PM
(Rain Date Oct. 30th)
Fall Tournaments
Platinum Games – Nov. 5
Diamond Nation, Flemington, NJ
Website: HERE
Lax for the Cure – Nov. 12
New Egypt, NJ
Website: HERE
Fall Draw – Nov. 13
Diamond Nation, Flemington, NJ
Website: HERE
Live Love Lax – Nov. 19
DE Turf Sports Complex, Frederica, DE
Stay-To-Play Hotels: HERE
Website: HERE
Summer Practice Schedule
Black River Fields, Chester
Time: TBA
Dates: TBA
Summer Tournaments
Lax by the Sea – June 3 or 4
Allentown, NJ
Website: HERE
Live Love Lax – June 10 & 11
Maryland Area
Stay-To-Play Hotels: HERE
Website: HERE
Lax for the Cure – June 17 & 18
New Egypt Area, NJ
Website: HERE
G8 – July 7, 8, 9 (specific dates TBA)
Capelli Sports Complex, Tinton Fall, NJ
Website: HERE
US Nationals – July 11 & 12
DE Turf Sports Complex, Frederica, DE
Stay-To-Play: Hotels Coming Soon
Website: HERE
2028 Blue and White Teams
Indoor Practice Schedule
ISP – Randolph, NJ
Wednesdays 6-7 PM
9.
21.22 – 3.8.23
(Off 11.23, 11.30, 12.7, 12.14, 12.21, 12.28, 1.4)
Outdoor Fall Practices – Black River Fields, Chester NJ
Sundays – Oct. 9th, 16th, 23rd – 2:30 – 4:00 PM
(Rain Date Oct. 30th)
Fall Tournaments
Platinum Games – Nov. 5
Diamond Nation, Flemington, NJ
Website: HERE
Lax for the Cure – Nov. 12
Allentown, NJ
Website: HERE
Live Love Lax – Nov. 19
DE Turf Sports Complex, Frederica, DE
Stay-to-play Hotels: HERE
Website: HERE
Summer Practice Schedule
Black River Fields, Chester
Time: TBA
Dates: TBA
Summer Tournaments
Lax by the Sea – June 3 or June 4
Allentown, NJ
Website: HERE
Live Love Lax – June 10 & 11
Maryland Area
Stay-to-Play Hotels: HERE
Website: HERE
Lax for the Cure – June 17 & 18
New Egypt Area, NJ
Website: HERE
G8 – July 7, 8, 9 (specific dates TBA)
Capelli Sports Complex, Tinton Fall, NJ
Website: HERE
US Nationals – July 11 & 12
DE Turf Sports Complex, Frederica, DE
Stay-To-Play Hotels: Coming Soon
Website: HERE
2029 Blue and White Teams
Indoor Practice Schedule
SP – Randolph, NJ
Wednesdays 6-7 pm
9.
21.22 – 3.8.23
(Off 11.23, 11.30, 12.7, 12.14, 12.21, 12.28, 1.4)
Outdoor Fall Practices – Black River Fields, Chester NJ – HIGHLANDS RIDGE FIELD
Sundays – Oct. 9th, 16th, 23rd – 2:30 – 4:00 PM
(Rain Date Oct. 30th)
Fall Tournaments
Platinum Games – Nov. 5
Diamond Nation, Flemington, NJ
Website: HERE
Lax for the Cure – Nov. 12
Allentown, NJ
Website: HERE
Live Love Lax – Nov. 20
DE Turf Sports Complex, Frederica, DE
Stay-to-play Hotels: HERE
Website: HERE
Summer Practice Schedule
Black River Fields, Chester
Time: TBA
Dates: TBA
Summer Tournaments
Lax by the Sea – June 3 or 4
Allentown, NJ
Website: HERE
Live Love Lax – June 10 & 11
Maryland Area
Stay-to-Play Hotels: HERE
Website: HERE
Lax for the Cure – June 17 & 18
New Egypt Area, NJ
Website: HERE
G8 – July 7, 8, 9 (specific dates TBA)
Capelli Sports Complex, Tinton Fall, NJ
Website: HERE
2030 Blue and White Teams
Indoor Practice Schedule
ISP – Randolph, NJ
Wednesdays 5-6 PM
9.
21.22 – 3.8.23
(Off 11.23, 11.30, 12.7, 12.14, 12.21, 12.28, 1.4)
Outdoor Fall Practices – Black River Fields, Chester NJ – HIGHLANDS RIDGE FIELD
Sundays – Oct. 9th, 16th, 23rd – 1:00 – 2:30 PM
(Rain Date Oct. 30th)
Fall Tournaments
Platinum Games – Nov. 5
Diamond Nation, Flemington, NJ
Website: HERE
Lax for the Cure – Nov. 12
New Egypt, NJ
Website: HERE
Live Love Lax – Nov. 20
DE Turf Sports Complex, Frederica, DE
Stay-to-play Hotels: HERE
Website: HERE
Summer Practice Schedule
Black River Fields, Chester
Time: TBA
Dates: TBA
Summer Tournaments
Lax by the Sea – June 3 or 4
Allentown, NJ
Website: HERE
Live Love Lax – June 10 & 11
Maryland Area
Stay-to-Play Hotels: HERE
Website: HERE
Lax for the Cure – June 17 & 18
New Egypt Area, NJ
Website: HERE
2031 Blue and White Teams
Indoor Practice Schedule
ISP – Randolph, NJ
Wednesdays 5-6 pm
9.
21.22 – 3.8.23
(Off 11.23, 11.30, 12.7, 12.14, 12.21, 12.28, 1.4)
Outdoor Fall Practices – Black River Fields, Chester NJ
Sundays – Oct. 9th, 16th, 23rd – 1:00 – 2:30 PM
(Rain Date Oct. 30th)
Fall Tournaments
Live Love Lax – Nov. 19
DE Turf Sports Complex, Frederica, DE
Stay-to-play Hotels: HERE
Website: HERE
Summer Practice Schedule
Black River Fields, Chester
Time: TBA
Dates: TBA
Summer Tournaments
Lax by the Sea – June 3
Allentown, NJ
Website: HERE
Live Love Lax – June 10 & 11
Maryland Area
Stay-to-play Hotels: HERE
Website: HERE
Lax for the Cure – June 17 & 18
New Egypt Area, NJ
Website: HERE
2032 Team
Indoor Practice Schedule
ISP – Randolph, NJ
Wednesdays 5-6 pm
9.21.22 – 3.8.23
(Off 11.23, 11.30, 12.7, 12.14, 12.21, 12.28, 1.4)
Outdoor Fall Practices – Black River Fields, Chester NJ
Sundays – Oct.
9th, 16th, 23rd – 1:00 – 2:30 PM
(Rain Date Oct. 30th)
Summer Practice Schedule
Black River Fields, Chester
Time: TBA
Dates: TBA
Summer Tournaments
Lax by the Sea – June 3
Allentown, NJ
Website: HERE
Live Love Lax – June 10 & 11
Maryland Area
Stay-to-play Hotels: HERE
Website: HERE
Lax for the Cure – June 17 & 18
New Egypt Area, NJ
Website: HERE
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Black diamond – the secrets of former popularity. News of the laboratory of the Gemological Center of Moscow State University
Black diamonds have been known to mankind since the beginning of the 18th century. The first carbonado deposits were discovered first in Brazil (Bahia), and then in Venezuela, South Africa. Deposits of black diamond are very rare, despite the lower value of this stone compared to colorless diamond.
Black diamonds rose to the peak of popularity in the late 90s of the last century thanks to the de Grisogono jewelry brand.
More than 20 years ago, the company released the first collection with black diamonds, it was a resounding success and was sold out immediately after the announcement.
Ornella Muti at the presentation of the collection with black diamonds by the jewelry brand de Grisogono, December 1998
The value of black diamonds increased 20 times thanks to de Grisogono’s strong marketing campaign and the global demand for these stones increased. They were used not only in jewelry and watches, black stones were inlaid in mobile phones, wardrobe items.
People began to actively acquire black diamonds without realizing the fact that there were probably more than 90% of these stones were ennobled by annealing. In most cases, black diamonds were sold without any mention of refinement. But when it became a well-known fact, the value of black diamonds in the eyes of the public fell, and they ceased to be in great demand, thus returning prices to their previous level.
Brands began to refuse to use black diamonds. Now these stones are still used in jewelry, but they are no longer as popular. And if in past periods jewelers could not mention whether the stones were ennobled, today the disclosure of ennoblement is a requirement of the rules of the jewelry trade.
There are two types of black diamonds: polycrystalline (carbonado) and monocrystalline. Polycrystalline black diamonds, or carbonados, are very specific and differ significantly from all other diamonds in isotopic composition and structure. This allows us not only to distinguish carbonado as a completely independent variety of polycrystalline diamond formations, but also as a variety of the mineral species itself and to assume formation conditions different from the classical colorless diamond. By themselves, they are intergrowths of diamond grains no larger than 20 micrometers in size, in the pores between which there are silicate material and iron oxides, which give the carbonado a dark color.
Often such polycrystalline formations have a zonal color: darker on the outside and light in the inner zones.
Single-crystal black diamond is colored mainly by inclusions of dark-colored minerals (graphite, chromium spinels, pyroxenes, etc.), which form dense accumulations in the outer zone of the crystal. In some cases, it happens that the central part of the stone is colorless and transparent. Intergrowths of 2-3 single-crystal diamond crystals can also occur, therefore, such diamonds have an affinity for the formation of polycrystalline formations, as described above carbonado. There is also a color variety of such diamonds called “salt and pepper” (“salt and pepper”), which is unevenly colored gray or black diamond crystals. “Salt and pepper” diamonds are sometimes used in modern accent jewelry.
The color centers of black diamond are poorly understood, but it is known that the most common nitrogen centers N2 and N3 are present in it. The N3 system is responsible for the blue luminescence in the central region of such diamonds.
Often such stones can be colored by natural radioactive radiation caused by the GR1 system. A structural defect of this type is fixed in natural diamonds in the surface zone of crystals and often manifests itself in the form of green and brown spots. There are studies confirming a different kind of color centers in diamond, associated with hydrogen impurities, which have the appearance of “clouds” and are located throughout the volume of the stone.
Natural diamonds of low color characteristics with a loss of transparency are often ennobled to give a black color. The most common methods are heat treatment using low pressure, HPHT treatment (using high pressure and temperature) and electron irradiation. When annealed at low pressure, graphitization is observed along the cracks in the volume of the stone, which leads to a uniform black color. In stones exposed to radioactive radiation, dark brown spots around cracks are fixed, inert to radiation in the short-wave UV range.
The key difference between such stones is that in natural diamonds, graphite inclusions and zones colored by the radiation of various particles are localized not only in cracks. When irradiated with high-energy electrons, diamonds most often acquire a dark green color, almost black, throughout the entire volume of the stone. Such a uniform coloration is not typical for naturally colored black stones, in which the color is not uniformly distributed in the surface zones. To diagnose the origin of the black color of such diamonds requires careful examination under a microscope and the use of Raman spectrometry. It should be noted that most often black diamonds are ennobled by annealing, irradiation is rarely used for this purpose.
As we can see, the refinement of black diamonds is quite common, and in most cases it cannot be established without contacting laboratories that can diagnose the refinement. An interesting sample of a black diamond weighing about 1 carat was recently examined at the Gemological Center of Moscow State University.
Unusual in it is a film of oxidation, visible when viewed through a microscope and turning the stone. It is unevenly distributed. It is also interesting that when studying from the side of the site using Raman microscopy, it turned out that areas of amorphous graphite alternate with areas of diamond, while from the pavilion the laboratory analyst sees the ideal Raman spectrum of natural diamond. Amorphous carbon is a modification of carbon without an ordered crystal structure, in contrast to natural graphite, which has a layered structure. In this regard, we can draw conclusions about the annealing of the stone at a high temperature, and the heating of the sample could be uneven. The unusual oxidation film is clearly visible from the side of the site and looks like an uneven doublet boundary, which can lead to an erroneous conclusion about the composite nature of the stone. In addition, the surface of the pavilion of the stone looks quite cavernous, numerous cracks are shown on the platform of the black diamond.
Photo under a microscope with magnification can be seen in the figures below.
Oxidation film on a black diamond examined at the Gemological Center of Moscow State University: observed on the main facets and paired wedges of the crown
Oxidation film on a black diamond studied at the Gemological Center of Moscow State University: observed on the faces of the pavilion
Raman spectrum (Raman spectrum, Raman), obtained from the site of a black diamond studied in the laboratory of the Gem Center of Moscow State University
At Sotheby’s auction in February 2022, the world’s largest cut black diamond Enigma weighing 555.55 carats was sold. Interestingly, this stone has 55 facets. The stone was paid for with cryptocurrency, which is uncharacteristic for the jewelry industry as a whole. An extraordinary black diamond went up for auction for more than $4.2 million. It is believed that it was formed as a result of a meteorite fall.
According to another version, this is a fragment of a diamond-bearing asteroid that collided with the Earth. But while these are just hypotheses, it is impossible to say for sure whether this was actually the case. However, this “provenance” created an image of mystery, mysticism and incredible rarity for the stone, all that attracts people, and definitely contributed to the excitement around the auction.
555.55 carat Enigma faceted black diamond. Photo: Sotheby’s
GIA laboratory report for cut black diamond “Enigma”
This material was published on the pages of the EXPO-Yuvelir magazine in November 2022. Part of the article can be read in the electronic version of the magazine (November 2022 – January 2023)
November 24, 2022
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777.37KBAmerican football helmets Tampa Bay Buccaneers NFL, nfl, sports Equipment, motorcycle Helmet png
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668.88KBPetzl Headlamp Climbing Harness Helmet, Helmet, orange, sports Equipment png
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631.29KBShoei Motorcycle Helmets Motorcycle racing, marc marquez, racing, motorcycles png
1000x1000px
858.03KBgray skull wearing black Nike football helmet, Oakland Raiders NFL Nike T-shirt, Black Skeleton Helmet, black Hair, simple png
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706. 42KBAmerican Football Helmets Baseball & Softball Helmets Lacrosse helmet Skiing & Snowboarding Helmets Cricket helmet, bicycle Helmets, sports Equipment, motorcycle Helmet png
1200x1200px
893.31KBMotorcycle Helmets AIROH Motocross, motorcycle helmets, technic, motorcycle png
640x640px
88.42KBOakland Raiders NFL Dallas Cowboys New England Patriots Buffalo Patriots, Oakland Raiders, sports Equipment, motorcycle Helmet png
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97.56KBMotorcycle Helmets Lacrosse helmet Bicycle Helmets GoPro, moto gp, sports Equipment, motorcycle png
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804.58KBKTM Motorcycle helmet Arai Helmet Limited, Safety Helmet, hat, orange png
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13.84MBMotorcycle Helmets Bicycle Helmets AIROH, motorcycle helmets, technic, motorcycle png
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1.06MBNew York Giants NFL Stadium MetLife Carolina Panthers Kansas City Chiefs, New York Giants, logo, sports Equipment png
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87.15KBMotorcycle helmets AGV Shark, motorcycle helmets, technic, racing png
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5.35MBblack helmet, Combat helmet Motorcycle Helmets Second World War Military, Helmet, motorcycle Helmet, mask png
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594.49KBMotorcycle helmet Bicycle helmet Mountain bike, Bicycle helmet, blue, sport png
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947.39KBLacrosse helmet Motorcycle Helmets Combat helmet Bicycle helmets, motorcycle helmets, technic, sports Equipment png
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432.38KBApes and Apes in Space Space suit Graphic design, cartoon monkey, animals, sports Equipment png
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318.81KBStormtrooper Boba Fett Star Wars Original Trilogy Helmet, stormtrooper, star Wars Episode VII, sports Equipment png
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936.66KBBicycle Helmets Motorcycle Helmets Lacrosse helmet Arai Helmet Limited, bicycle helmets, pin, sports Equipment png
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639.33KBMotorcycle Helmets Decal T-shirt DirtBike Lunatic, helmet, technic, sports Equipment png
500x500px
32.02KBArchitectural engineering Business Project, Helmet, blue, hat png
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4. 87MBJetpack Joyride Astronaut Space suit Clothing, astronaut, sports Equipment, outer Space png
650x650px
59.97KBBicycle Helmets Mountain bike Cycling, bicycle helmets, orange, bicycle png
1200x1200px
534.23KBNew England Patriots helmet illustration, New England Patriots NFL Super Bowl LI Atlanta Falcons, New England Patriots, logo, sports Equipment png
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174.26KBMotorcycle Helmets Racing helmet Visor, motorcycle helmets, technic, motorcycle png
800x800px
1.75MBPittsburgh Steelers NFL Green Bay Packers Denver Broncos Miami Dolphins, Steelers Logo s, sports Equipment, motorcycle Helmet png
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104. 56KBBicycle Helmets Bicycle Pedals Sopko s.r.o. Bicycle handlebars Road bicycle, bicycle helmets, bicycle Frame, bicycle png
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267.14KBMotorcycle Helmets AGV Motorcycle racing, motorcycle helmets, blue, technic png
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830.64KBMotorcycle Helmets Racing helmet Fox racing, motorcycle helmets, blue, technic png
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396.77KBCricket Helmet Cricket Helmet Cricket clothing and equipment Sporting Goods, Helmet, sport, sports Equipment png
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1006.66KBCricket helmet Kookaburra Sport Cricket bats, helmet, sport, sporting Goods png
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1. 16MBBicycle Helmets Motorcycle Helmets Black Panther Captain America Star-Lord, Infinity Gauntlet, sports Equipment, motorcycle Helmet png
639x1000px
1022.29KBIce hockey helmet Ice hockey Bauer Ice hockey, helmet, sports Equipment, motorcycle Helmet png
800x800px
686.4KBwhite and blue sports bike, Motorcycle racing Superbike racing, motorcycle racing, driving, racing png
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438.47KBNolan Helmet Motocross Enduro Motorcycle, Helmet, orange, bicycle png
700x700px
658.95KBBicycle Helmets Motorcycle Helmets Lacrosse helmet Shoei, bicycle helmets, blue, sports Equipment png
560x560px
354.
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1.16MB
29MB
42KB
org/ImageObject”>World Earth Web Earth logo, Internet and World Wide Web Email, World Wide Web Pic, computer Network, web Design png
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973.72KB
org/ImageObject”>Bicycle Helmets Motorcycle Helmets AGV Car, bicycle helmets, car, motorcycle png
1000x1000px
964.58KB
org/ImageObject”>Dallas Cowboys American Football Helmets NFL Cleveland Browns Kansas City Chiefs, helmet, logo, sports Equipment png
1400x1200px
250.82KB
87MB
56KB
16MB
