Sriram “Ram” Natarajan is now GIA’s senior vice president of laboratory operations and is based out of the lab’s headquarters in Carlsbad.
121-Carat Rough Diamond From Cullinan Goes for $6 Million
Petra Diamonds Limited announced that the white diamond, recovered in South Africa last month, garnered $49,480 per carat during its June sales process.

Johannesburg--The most recent large diamond find from South Africa’s Cullinan mine, a 121-carat rough recovered in June, has sold.
Petra Diamonds Limited announced that the white diamond went for $6 million, or $49,480 per carat, during the company’s June sales process.
The rock was purchased by diamond manufacturers Nemesis International and Golden Yellow Diamonds in a joint venture. Both companies specialize in large diamonds.
The sale comes in the wake of last week’s failed Sotheby’s auction of a 1,109-carat rough diamond found at Lucara Diamond Corp.’s Karowe mine in Botswana.
Called “Lesedi la Rona,” it was the second-largest rough diamond ever found.
Lucara chose to sell the Lesedi la Rona at a public auction, instead of a normal tender within the diamond market, to ascertain whether buyers would be interested in a rough diamond as a collectable, similar to high-value art.
Bidding for the stone failed to meet its reserve.
Lucara had better luck with its 812.77-carat rough diamond, also mined from Karowe, named “The Constellation,” which sold in a traditional diamond-industry-only tender for $63.1 million, or $77,649 per carat, in May.
The Constellation also sold to Nemesis International, one of the buyers of the 121-carat Cullinan rough diamond.
The Latest

The one-of-a-kind collar represents the beauty of imperfection and the strength to rebuild.

Three C-suite executives, including former CEO Tom Nolan, have resigned as part of what the company describes as a “transition.”

Jewelers of America is leading the charge to protect the industry amidst rising economic threats.

The retailer, which recently filed Chapter 11, inked a deal to sell its North American business and intellectual property.


Target CEO Brian Cornell will step down in February and be replaced by the company’s chief operating officer, Michael Fiddelke.

The group met with the president's senior trade advisor earlier this week to express the industry’s concerns about the effects of tariffs.

As a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.

The pop-up will display this year's Tiffany & Co. Singles Championship trophies along with a diamond-encrusted tennis racket and ball.

The New Hampshire-based store has expanded to Boston, propelled by the success of Alex Bellman’s TikTok page, “The Truthful Jeweler.”

The latest incident happened Monday at a store in Oakland, California, continuing a pattern JSA first warned about last month.

The new aqua green New York Harbor Limited Edition II is the watchmaker’s second collaboration with the Billion Oyster Project.

Participants who attend any three Rings of Strength events will be awarded a special medal.

Smith shares wisdom he gleaned from a podcast he was listening to one morning while being walked by his dog, a Malshi named Sophie.

The counterfeit Van Cleef & Arpels jewels would have been worth more than $30 million if genuine.

The MJSA Mentor & Apprenticeship Program received the Registered Apprenticeship Program designation by the U.S. Department of Labor.

Casio executive and watch enthusiast Masaki Obu is the new general manager of its U.S. timepiece division.

Barabash, Verragio’s client relations representative, was a vital member of the team and is remembered as being warm and full of life.

Originally introduced in 1992, the “Dot” collection is back with a capsule featuring five archival designs and three new creations.

Allison-Kaufman has received the honor for the fourth year in a row.

The company had a solid second quarter, with sales of non-charm jewelry outpacing sales of pieces in its core collections.

Taylor Swift dons the vibrant pair in new promotional imagery for her upcoming album, “The Life of a Showgirl,” set to release in October.

Its investment in micromechanics expert Inhotec will preserve skills essential to the watchmaking industry as a whole, said the company.

Nicolette Bianchi joins the wholesale provider with more than 15 years of cross-industry experience in marketing and product development.

Her new “Ocean” collection was inspired by Myanmar’s traditional articulated fish jewelry, with depictions of flounder, catfish, and more.

Longtime Casio executive Yusuke Suzuki is the new president and CEO of Casio’s U.S. subsidiary.

Model Georgina Rodríguez received a rock of an engagement ring, with her diamond estimated to be 35 carats, experts say.