In a historic discovery, a 2,492-carat diamond has been unearthed at Botswana’s Karowe Mine, the largest diamond found in ...

In the age of private sales and auction-house theatrics, the old metrics of diamond value—cut, clarity, carat and color—are only the opening act. True connoisseurs are chasing rarity, provenance ...

It’s this brilliant reinvention of how to wear antique jewels in a modern way that feels very Cartier.” Divided into three ...

The brooch features a 23.6 carat pink diamond, one of the largest in the world. Another royal treasure? The 10.48 carat diamond engagement ring of Princess Grace of Monaco—who was known as ...

A curator of the Victoria and Albert Museum’s “Cartier” exhibition explains how the jeweler’s “elegance” and “discretion” led ...

Curators Helen Molesworth and Rachel Garrahan have "kept it simple", artfully arranging a collection of "exquisite objects of ...

Chip Clark The Blue Heart Diamond, cut from a 100-carat stone found at the Premiere ... anywhere from one to three billion years old, a time when the earth was probably hotter than it is today ...

Diamonds and other gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the same weight as a paperclip. (Don’t confuse carat with karat, as in “18K gold,” which refers to ...