Gemological Institute of America

Most don't know they're made in China and India from electricity generated by burning coal.

A pink diamond of "unparalleled color and brightness" is expected to fetch over $35 million when it goes on sale in New York, auction house Sotheby's announced Wednesday.

This Valentine's Day could see gems grown in a lab take market share from natural ones

Two diamonds that were stolen in an elaborate scheme — in which a con artist repeatedly posed as a representative for Justin Timberlake and Jessica Biel...

Whimsical and luxurious, the Beauvince Radiance Collection celebrates playfulness, juxtaposing diamond shapes and colors this holiday season.

A rare collection of eight blue diamonds will be auctioned off by Sotheby's in 2022 and 2023. The collection is valued at $70 million.

It was the world's largest diamond when mined and today it's cut into nine gems that are all part of the British Crown Jewels. But since the death of Queen Elizabeth II, questions have emerged about its imperialist history.

A giant diamond nicknamed "The Rock" went on display for the first time in Dubai on Friday ahead of an auction where it is expected to fetch over $30 million.

It's very lonely.

A photo shared online in September 2024 authentically showed a 75-pound pearl with an estimated value of $100 million that a Filipino fisherman kept under his bed for 10 years.

Lab-grown diamonds come with sparkling price tags, but many have cloudy sustainability claims.

Here's everything you need to know about diamonds synthesized in the lab, and how they may (or may not) differ from their natural counterparts.

Understanding the jewelry world's black market may be key to tracing the whereabouts of a multimillion-dollar haul stolen from a Brink's big rig.

Celebrity favourite jeweller even customises Rolexes

A diamond contains the only known sample of a mineral from Earth's mantle—and hints at oceans' worth of water hidden deep within our planet

A rare pink diamond, weighing 170 carats and called "The Lulo Rose," has been unearthed in Angola and is believed to be one of the largest ones discovered in the last 300 years.

Named "The De Beers Cullinan Blue," the massive 15.10-carat step-cut gem sold at Sotheby's in Hong Kong after an eight-minute bidding war.

'Americus Australis' could go for up to $350K

Discreet showrooms in the affluent area of central London are attracting a values-oriented millennial clientele

The Eternal Pink will go on sale in June.