Nearly 42-Carat Blue Diamond Discovered in South Africa
Petra Diamonds unearthed the 41.82-carat, Type IIb blue diamond at the Cullinan Mine.

Petra announced the recovery of the Type IIb diamond on Tuesday but provided few additional details.
The mining company, which recently refinanced and completed a rights issue to help it stay afloat, said it is still analyzing the stone and determining how it should be sold.
More announcements about how the diamond will be marketed will be made in due course, Petra added.
Petra Diamonds operates two diamonds mines in South Africa, Cullinan and Finsch.
The Cullinan Mine has yielded sizable blue diamonds in the past, including a collection of five weighing between 9.61 and 25.75 carats.
All discovered over the course of the same week in September 2020, Petra sold the stones to De Beers Group and Diacore in November 2020 for $40.36 million.
De Beers later incorporated them into an eight-stone collection of fancy intense and fancy vivid blue diamonds that ultimately did not perform well at auction in 2022.
Signs of weakness in the market for fancy color diamonds, which once seemed destined to keep increasing in price, have continued since then.
In November, Christie’s sold the “Mellon Blue,” a 9.51-carat fancy vivid blue, for $25.6 million, $7 million less than the diamond garnered at auction a decade ago.
The Latest

Held just before the Oscars, the jewelry industry’s big awards show had its share of standout jewelry, gowns, and acceptance speeches.

The Academy Award-winning actress stars in Tiffany & Co.’s latest commercial, which debuted Sunday night during the Oscars.

The organizational change follows Kering’s promise of a transformation after declining sales in 2025.

Every jeweler faces the same challenge: helping customers protect what they love. Here’s the solution designed for today’s jewelry business.

Natalie Francisco rounds up the top Oscars jewels, including Rose Byrne’s Taffin necklace with a more than 20-carat yellow-brown diamond.


Béatrice Goasglas has been with TAG Heuer since 2018. She is the first woman to head the 166-year-old, LVMH-owned watch brand.

The store features the first in-store build for the jeweler’s in-house “Bella Ponte” bridal brand.

With refreshed branding, a new website, updated courses, and a pathway for growth, DCA is dedicated to supporting retail staff development.

The live fine jewelry auction will take place later this week, showcasing antique pieces, rare gemstones, and signed jewels.

Our Pieces of the Week honor the 2026 nominees for the Gem Award for Jewelry Design, Silvia Furmanovich, Cece Fein-Hughes, and Catherine Sarr.

The 24-piece watch collection is set to debut in spring 2027.

The reopening of the Waldorf Astoria means a homecoming for the industry group’s annual event, which will take place Saturday.

McCormack looked to the 19th century’s “golden age” of astronomy when designing her new celestial-themed collection.

Nelson will be honored as the inaugural grant winner at the Gem Awards gala on Friday.

The new smart design software allows jewelers to configure, price, and confirm a custom engagement ring in real time for in-store customers.

The 10,000-square-foot diamond manufacturing facility officially opened in late February and employs 50 people.

The MJSA Education Foundation’s scholarships support students pursuing jewelry careers.

The largest white diamond to come to market in the U.K. in more than a decade, the VVS1, I-color stone is expected to top $1 million.

Skelly shares her plans for reimagining the fine jewelry retailer she re-acquired after it faltered last year.

The collection takes inspiration from the emotional space between people, moments, and experiences.

In 2026, the jewelry retailer is celebrating a milestone only a small percentage of family-owned businesses survive to see.

The group of jewelers held a jewelry raffle in support of the Children’s Hospital of Richmond at VCU.

The jewelry giant released preliminary results for the fourth quarter and full year on Monday, with final results slated to come next week.

The retailer also gave an update on its vendor partnerships.

The award-winning actress is the “epitome of modern allure,” the brand said.

The “Bloom” collection draws from the flower power movement of the 1960s and ‘70s with inlay pendants offered in eight colorways.

The unique piece was one of the custom works offered at the foundation's recent silent art auction, which garnered nearly $15,000 in total.

























