Steep Rise in De Beers Rough Production

May 03, 26 by John Jeffay

e Beers says rough diamond production increased by 17% in the first three months of 2026, to 7.1 million carats. The increase was largely driven by the release of stockpiled ore at Gahcho Kue, in Canada, (up 163%) and higher underground volumes at... Read More...

Record $2m Paid for 1987 Cartier Crash

May 03, 26 by John Jeffay

A Cartier watch from 1987 sold at auction for almost $2 million, smashing its high estimate and setting a new record for the 179-year-old company. The yellow gold "melted" oval Cartier Crash realized HKD 15,616,000 ($1.994 million) at Sotheby's.... Read More...

Jewelry Crime More Sophisticated and More Violent, says JSA

April 30, 26 by John Jeffay

Crime cost US jewelers $144.7 million in 2025, as raiders employed increasingly sophisticated techniques, used more violence and stole more per robbery. There were two homicides, during the year, said the Jewelers' Security Alliance (JSA) in its Annual Crime... Read More...

6.03ct Fancy Vivid Blue Could Fetch $12m

April 30, 26 by John Jeffay

An internally flawless, 6.03-carat fancy vivid blue diamond is expected to sell for up to CHF 9.5 million ($12.2 million) at Sotheby's Geneva. The cushion-modified brilliant Type IIb gem, from South Africa's Cullinan mine, is set in a platinum ring and leads... Read More...

S&P Cuts Mountain Province Credit Rating

April 30, 26 by John Jeffay

Mountain Province's credit rating has been downgraded by S&P, to reflect "a higher likelihood of a near-term default or debt restructuring". The Canadian diamond miner is facing significant debt maturities and financial obligations that it has yet ... Read More...

Memo by John Jeffay

April 30

Blue diamonds are rare, green diamonds are rarer still. But diamonds with both a blue and a green hue are virtually unheard of. That's why the upcoming auction of the 5.50-carat fancy vivid blue-green Ocean Dream at Christie's Geneva next month is...  Read More...