The invitation-only Centurion Show for luxury retailers and luxury jewelry manufacturers and designers is the first U.S.

It has been bad enough that Anglo American-owned De Beers, one of the world’s largest diamond miners, reduced its rough diamond prices ... Natural-diamond jewelry sales in the U.S. declined ...

DeBeers is learning the hard way. Diamonds are not forever. The miner, owned by the multi-national, Anglo American, has been ...

Jewelry designer Nina Runsdorf was at a trade show in the early 2000s when a “large brown rock” the size of a pebble caught her eye. The seller told her it was a rough brown diamond.

“Rough Diamonds,” a joint production from Israel’s Keshet International and Belgium’s De Mensen, follows the Wolfson family as it navigates internal tension and business struggles in the ...

Rough diamonds, fit for cutting, are sold at 41 13s. 4d., to 42 the carat. A carat is rather more than three grains, and 156 carats equal to one ounce Troy. But if the stones ' are above one carat ...