US Supreme Court Vetoes Trump’s Global Tariffs

Vote of six to three determines president exceeded his authority, but what this means in terms of refunds and taxes is unknown.

Rio Tinto Diamond Unit Remains in Red

Revenue for full year up 19% to $332 million.

Lab-Grown ‘Taking Over’ Engagement-Ring Spending – The Knot

In 2025, 61% of purchases in this jewelry category were synthetics.

GIA Examines Unusual Faceted Armenite

Testing reveals inclusions that match a similar specimen from the institute’s museum.

Podcast: How India Has Come to Love Diamonds

Richa Singh of the NDC explains the market’s growth.

JSA Offers Up to $10,000 Reward for Leads in Abduction of Nancy Guthrie

The family has connections to the jewelry industry.

Birks Names New Chief Financial Officer

Aldo Battista will succeed Katia Fontana, who retires on April 1.

NDC: Average Engagement-Ring Price Tops $7,000

Most popular shapes are round and oval.

US Retail Sales Continue to Rise in January

Revenue up 0.2% from December and 6% year on year.

Video: Angola Pays $8M to Boost Natural-Diamond Marketing

Antwerp’s Karen Rentmeesters on the NDC, the sale of De Beers, and the market’s challenges.

Featured