It will quit assigning the stones specific color and clarity grades in favor of applying “new descriptive terminology.”
Three diamonds to top Sotheby’s sale
A trio of large stones expected to sell for millions of dollars each are the highlight of Sotheby’s May 13 auction of Magnificent Jewels and Noble Jewels in Geneva.

Leading the trio is the “Graff Vivid Yellow,” a 100.09-carat fancy vivid yellow “daffodil”-colored diamond mounted in a ring. The stone is among the largest fancy vivid yellow diamonds in the world, Sotheby’s said, and is expected to sell for up to $25 million.
The “Victory Diamond” is a 31.34-carat D-color step-cut diamond graded by the Gemological Institute of America as a Type IIa and potentially flawless.
The rough that produced the Victory Diamond was discovered in Africa’s Woyie River in 1945 weighing in at 770 carats, making it the largest alluvial rough diamond ever found at that time.
Thirty diamonds were cut from this piece of rough. The Victory Diamond was the largest and it was named in honor of the Allied victory in World War II. The stone has a pre-sale high estimate of $8 million.
The third diamond is a 103.46-carat brilliant-cut diamond set into a ring made by Graff.
One of the largest known round diamonds, the gem is included on the list of the world’s largest cut diamonds in the late Ian Balfour’s book Famous Diamonds, published in 2008. It is expected to garner between $3.5 million and $5 million at auction.
The Latest

From design trends to sustainability, here’s a roundup of can’t-miss education sessions at JCK Las Vegas.

The Jewelers’ Security Alliance offers advice for those attending the annual trade shows.

When investing in your jewelry business, it's important not to overlook the most crucial element of success: the sales associates.

Her new role is director of strategic initiatives.


The entrepreneur and “Shark Tank” star will share his top tips for success.

The designer is embracing bold pieces with weight to them in “AU79,” a collection she celebrated with a creative launch party.

More shoppers are walking out without buying. Here’s how smart jewelers can bring them back—and the tool they need to do it right.

On an earnings call, CEO J.K. Symancyk discussed what’s working for the company and how it’s preparing for the potential impact of tariffs.

The index partially rebounded after months of decline, due in part to the U.S.-China deal to temporarily reduce import tariffs.

The actress stars in the latest campaign set in Venice, Italy, and is set to participate in other creative initiatives for the jeweler.

The company has joined other labs, including GIA and Lotus Gemology, in adopting the Chinese term for "jadeite jade."

The large stone will be offered at its June sale along with a selection of secondary-type rubies from a new area of the Montepuez mine.

Located in Bangkok, the laboratory is Gemological Science International’s 14th location worldwide.

Those born in June have a myriad of options for their birthstone jewelry.

The diamond industry veteran has been named its senior sales executive.

The company plans to raise the prices of select watches to offset the impact of tariffs.

Between tariffs and the sky-high cost of gold, designers enter this year’s Las Vegas shows with a lot of questions and few answers.

Designed by founder Renato and his daughter Serena Cipullo, it showcases a flame motif representing unity and the power of gathering.

However, the tariffs remain in effect in the short term, as an appeals court has stayed the U.S. Court of International Trade’s decision.

The pop icon is one step closer to launching her “B Tiny” jewelry collection, a collection she first began posting about last fall.

Sponsored by Stuller

It was featured in the miner’s latest sale, which brought in $24.8 million.

GemText AI uses artificial intelligence to generate tailored product titles, descriptions, and tags with jewelry-specific language.

The 3,300-square foot location is the jeweler's largest store in North America.

Aging and with myriad health issues, none will serve time for their roles in robbing the billionaire celebrity at gunpoint in 2016.

The WNBA team received rings imbued with meaning, from leaf motifs and its Liberty torch to the number of diamonds used.