South Africa's Cullinan mine has yielded a rare blue diamond of 41.82 carats, with experts saying it could be worth more than $40 million.

Add Yahoo as a preferred source to see more of our stories on Google. The latest blue diamond to hit the auction block certainly lives up to its namesake. The 10.03-carat Mediterranean Blue gem will ...

Blue diamonds are considered the rarest and most desired on the market. A particularly big one sold for millions at Sotheby’s on Thursday, scraping just beneath the surface of its $26 million ...

GENEVA (AP) — A blue diamond weighing nearly 10 carats has sold at auction in Switzerland for 20.5 million Swiss francs ($26.6 million) including fees. Today in History: April 8, Hank Aaron breaks ...

(IDEX Online) - Petra reported a 64% surge in sales for Q3 2026, driven largely by larger, higher‑value parcels from its ...

GENEVA (AP) — A blue diamond weighing nearly 10 carats has sold at auction in Switzerland for 20.5 million Swiss francs ($25.6 million) including fees. The pear-shaped 9.51-carat “Mellon Blue” — named ...