Members can still sell lab-grown stones, it said, but only natural gems are allowed on the show floor.
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The limited-edition men’s rings can be customized with one of 12 team logos.

Colored gemstones and signed jewels are the focus of its upcoming Geneva sale.

The trade show is moving downtown to the Expo at World Market Center.

Carved by Naomi Sarna, the “L’Heure Bleu” is now the world’s largest cut tanzanite.

Marina Mekhaeil studies engineering at the University of Houston.

Organizers also announced details for JCK Talks, the show’s educational programming.

The brilliant-cut fancy vivid yellow stone sold for $1.1 million.

Scholarship applications are being accepted now, and the window for the grant will open in May.

He’s remembered as a “font of passion,” leaving behind a legacy of dedication to his craft and community.

The former WJA executive director is MFM’s new managing director.

Highlighting the most iconic Tiffany collections, it’s inspired by the company’s late window designer, Gene Moore.

The lab stresses the importance of accurate identification, as the difference in price is “substantial.”

One is reserved for a NAJA member, the other for a non-member.

The trendy, metallic earrings wink at classic spring colors.

The miner’s March auction generated $19 million.

“Chopard x Julia Roberts” showcases the first gems cut from the 6,000-carat-plus “Insofu Emerald."

The miner unveiled its newest peridot cut at the recent Hong Kong show.

The deadline to apply is March 29.

Ticketholders can dig for diamonds in the Arkansas park ahead of the eclipse viewing event on April 8.

The versatile jewel pairs ancient Egyptian inspiration with a modern design.

The spring application window closes on March 31.

It’s estimated to sell for up to $1.3 million at the upcoming sale on March 28.

“Ice Cold: An Exhibition of Hip-Hop Jewelry” will open at the New York City museum on May 9.

“Power of Couture” recalls Frédéric Boucheron’s love of fabric using diamonds and rock crystal.