The largest known fancy vivid blue-green diamond could fetch more than $12 million at its second auction appearance.
Petra’s big blue diamond goes for $25M
Petra Diamonds announced Friday that it has sold the 29.6-carat rough blue diamond it uncovered at the Cullinan mine in South Africa last month.

London--Petra Diamonds announced Friday that it has sold the 29.6-carat rough blue diamond it uncovered at the Cullinan mine in South Africa last month.
South African company Golden Yellow Diamonds for Cora International NY purchased the stone for $25.6 million, or $862,780 per carat.
When the stone was unearthed in January, Petra described it as “exceptional,” noting that it is an outstanding vivid blue with extraordinary saturation, tone and clarity.
“This sale result affirms this stone as one of the most important blue diamonds ever recovered,” Petra CEO Johan Dippenaar said. “An additional allure is the diamond’s heritage from the Cullinan mine in South Africa, which is well known as the source of many of the world’s most spectacular diamonds, including the two main diamonds in the British Crown Jewels, and which is the world’s most important source of very rare blue diamonds.”
RELATED CONTENT: Nearly 30-carat blue diamond found in S. Africa
Since Petra acquired the Cullinan mine in June 2008, the company has uncovered four notable, large blue diamonds, three of which sold for more than $8 million.
The highest grossing of these was a 25.5-carat blue that sold for $16.9 million last year, as well as a 26.6-carat piece of blue rough that sold for $9.5 million in 2009, and a 39.9-carat diamond that sold for $8.8 million in 2008.
RELATED CONTENT: Large rough brings big money for mining cos.
London-based Petra Diamonds has interest in six producing mines, five in South Africa--the Finsch, Koffiefontein, Kimberley Underground, Helam, and Cullinan--and the Williamson mine in Tanzania.
The company also has an exploration program in Botswana.
The Latest

Emmanuel Raheb says jewelers need to start marketing early and make it easy for customers to pick a gift for mom.

In honor of the milestone, the Nebraska jeweler has debuted Leslie & Co., its new in-house jewelry brand.

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

The trade organization, which held its annual elections earlier this year, also added five new board members.


NRF’s annual survey found that 45 percent of consumers plan to purchase jewelry for a loved one this Mother’s Day.

The “Vault” charm, our Piece of the Week, expands on the memories that can be stored in a locket by connecting to your phone.

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

The open-to-the-public luxury jewelry and timepiece show, in its second year, is slated for July 23-26.

The jeweler’s Mother’s Day campaign highlights the women who work there—mothers, grandmothers, women who want to be mothers, and dog moms.

Sponsored by Jewelers Mutual

The proposed agreement follows the moissanite maker’s Chapter 11 bankruptcy protection filing last month.

The Patek Philippe for Tiffany & Co. timepiece Astor brought aboard the ill-fated ship sold for double its estimate at a Freeman’s auction.

The “Dalí’s Garden” collection was inspired by a surreal dream Neeley had after cooking a recipe from Salvador Dalí’s 1973 cookbook.

Natalie Feanny has been appointed to the role.

The pair falsely claimed their jewelry was made by Navajo artists, but it was imported from Vietnam.

Julien’s Auctions is selling the musician’s fine and fashion jewelry alongside her clothing, gold records, and other memorabilia.

Rachel King’s book dives into the history of the pendant believed to have belonged to Henry VIII and his first wife, Katherine of Aragon.

The company will have deals on precious metals testers as well as the latest in lab-grown diamond detection technology and security.

Gabrielle “Coco” Chanel is a character in the “Coco Game” collection of watches and the queen in its first haute horlogerie chessboard.

The annual list honors rising professionals on the retail and supply sides of the jewelry industry.

Seized in Kentucky, the packages include fake Cartier, Tiffany & Co., Chanel, and Fendi jewelry.

Rodolfo Lopez-Portillo faces 25 years to life in prison after being found guilty in the March 2022 beating death of Arasb Shoughi.

“Jewelry Creators: Dynamic Duos and Generational Gems” highlights the relationships among 22 influential designers, brands, and gem dealers.

The AJS Spring 2027 show will be held in Savannah, Georgia, with future shows taking place in other Southeast cities.

The jewelry retailer plans to open 20 new stores this year and expand into new product categories.

Flower motifs are the jewelry trend blooming amongst the new collections that debuted this spring.






















