Museum officials are looking to the public to help cover the “exceptional” costs involved in recovering from the July 5 smash-and-grab.
5 Blue Diamonds Found at Mine in South Africa
The diamonds are said to be of top color and clarity, with the largest among them weighing in at almost 26 carats.

London—Five blue diamonds weighing between 10 and 26 carats were recovered in a single week from a famous diamond mine in South Africa.
Miner Petra Diamonds Ltd. announced the recovery of the stones from the Cullinan Mine Wednesday, describing them as top color and clarity and noting they are not believed to have broken off the same rough diamond.
The diamonds weigh 9.61, 11.42, 17.57, 21.25 and 25.75 carats.
Petra noted it’s been a year since it has recovered a blue diamond of significance from Cullinan, which makes finding five high-quality diamonds in the span of one week even more unusual.
The company said it is still evaluating how and when it will sell these five stones, citing the travel restrictions associated with COVID-19.
RELATED CONTENT: Going Deep—What the GIA Just Learned About Blue Diamonds
The recovery of the five blues is a bright spot for the struggling London-based mining company, which operates the Finsch and Koffiefontein mines in South Africa and the open-pit Williamson mine in Tanzania in addition to Cullinan.
Saddled with debt and hit with power outages in South Africa, lower diamonds prices and, now, a diamond market hobbled by COVID-19, Petra announced in June it was trying to find a buyer for some or all its mines.
It said Wednesday that while the recovery of the five blue diamonds was a “positive development,” it “will not have a material impact on the likely terms of the required long-term solution to improve the group’s capital structure, nor the significant level of equity dilution that existing shareholders are likely to experience in connection with its implementation.”
In addition to its financial troubles, Petra is facing claims of human rights abuses at its Williamson mine in Tanzania, which was mothballed in April.
U.K. law firm Leigh Day—the same firm that represented the Mozambicans who sued Gemfields over human rights abuses at its ruby mine there—has filed claims in the High Court of England and Wales against Petra and Williamson Diamonds Ltd. on behalf of 32 individuals who say the mining companies’ security contractor is responsible for deaths, injuries and other human rights abuses at and surrounding the mining site.
National Jeweler will have more on this story next week.
The Latest

Sponsored by Stratus Estate Buyers

The overhaul includes enhanced employee safety training and trendy earring styles, including lab-grown diamond studs.

Retailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.

The retailer said it had its biggest Mother’s Day ever, with strong demand for higher-priced jewelry.


“Handwork: Handcrafted Objects that Made America” features historic and contemporary works, including a Diné squash blossom necklace.

The Armenian Jewelers Association’s East Coast chapter has also elected its 2026–2027 board of directors.

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

Onyx Partners has submitted a second offer to buy the department stores after its first offer fell through last year.

Solomon Brothers Jewelers has partnered with local cocktail bar Roaring Social on a new martini garnished with a tennis necklace.

Benjamin Siegel, son of President and CEO Hank Siegel, started working for the family business this week.

The new space features a modern design that blends Bulgari’s Roman heritage with San Diego’s coastal spirit.

Four men were charged in connection with the break-in and accused of stealing $365,000 in cash, jewelry, and designer goods.

André Branch has more than 25 years of experience with various brands, most recently serving as CEO of Ariana Grande’s cosmetics company.

New York-based atelier Gemlok is best known for creating the innovative “bridge” setting that became popular in the bridal market.

Santana Now's debut collection, “Unidad,” features symbolic motifs as well as pieces of wood from the Woodstock stage.

The 50-year-old man pleaded guilty earlier this year to robbing two jewelry stores and a pawn shop of more than $700,000 in merchandise.

The watch’s dial features an original design by Marvel comics illustrator Adam Kubert.

The new collection of lab-grown diamond and colored gemstone jewelry provides a “fresh perspective” on the category, Chatham said.

While some August babies are team peridot, the month's time-honored birthstone, others are team spinel, the newer alternative.

Edina Kiss’ “Popsicle” pendant and Karina Choudhrie’s “Ice Cream” charm satisfy that summer craving for a sweet piece of jewelry.

The massive billboard has been in the same spot on the department store’s Herald Square flagship store for decades.

David Bonaparte, along with Tim Haake and Ronnie VanderLinden, continue to lobby for tariff exemptions for diamonds, gemstones, and pearls.

Survey respondents were concerned about the rising prices of food and groceries as well as unemployment.

The trade show, slated for Sept. 4-8 in Vicenza, Italy, will feature sessions on trends, AI, gemology, and manufacturing.

The public shopping event featuring art, jewelry, watches, and rare collectibles, will take place in Santa Clara, California, this fall.

Endiama Commercial Director Elton Escrivão knows people have a lot of misperceptions about Angola. He wants to change that.
























