Sotheby’s and Christie’s will auction a strong collection of rare and important gemstones in New York just in time for the holidays, with both featuring a blue diamond ring as the top lot. On Dec. 4, ...

A Glasgow collector's pear-shaped stone is only the third blue diamond over 8 carats to be offered at auction in the UK, ...

On Oct. 1, a Scottish collector's 8.03 ct. natural fancy light blue pear-shape diamond will become only the third blue ...

"This is the most famous blue diamond that's coming up for sale for the first time ever in over 100 years." :: The boron in this diamond gives it its blue color and also makes it electro-conductive ...

Blue diamonds are a geologist’s best friend. At least according to a new study published today in the journal Nature. Diamonds—one of the most sought after gemstones in the world—have started wars and ...

Is the global turmoil driving sales of portable assets? Or is it just a love of rare jewels? By Jill Newman Alisa Moussaieff was in her London office on May 14, having lunch and bidding over the phone ...

‘Once in a lifetime’ blue diamond ring expected to fetch up to £2 million at auction - The pear-shaped diamond ring is being sold by a collector ...

Sotheby’s said Thursday it will offer a group of eight Fancy blue diamonds that will be sold across its Magnificent Jewels auctions in New York, Geneva and Hong Kong beginning in November through the ...