Rare diamonds

By Erika Winters 122.52-carat blue diamond recovered at the Cullinan mine Petra Diamonds announced the recovery of a 122.52-carat blue diamond at the Cullinan mine in South Africa. The diamond […]

The 102.34 carat rock, cut from a stone mined in Botswana, has been hailed as the 'rarest white diamond' ever to come to market. It is on display at Sotheby's Diamonds in London.

Diamonds which have not yet been cut are referred to as 'rough' or 'raw' diamonds. To identify whether the stone you have is a diamond, you can do a quick visual evaluation to rule out other gemstones. From there, you'll want to perform a...

Diamonds are popular gemstones surrounded by popular misconceptions. We'll tell you how they became so prized and debunk some of those diamond myths, too.

What does a 1 carat diamond look like? How about a 5 carat diamond? See what different diamond carat sizes really look like with our visual guide—and learn why the number of carats shouldn't be the top factor for choosing a great stone for an engagement ring.

A 12.76 carat pink diamond, the largest of the rare and precious stones ever found in Australia, has been named the Argyle Pink Jubilee ...

The world of engagement rings may reign supreme, but diamonds are certainly not the only gemstone you can choose. You have many options for something different, including stones that look very similar to diamonds, such as moissanite. “Moissanite is a naturally occurring mineral called silicon carbide, which is very rare and can’t be found

High-quality pink diamonds command extremely high prices, second only to red diamonds – the rarest of all fancy colors.

Timed to coincide with the 40th-anniversary celebrations of Sotheby’s operations in Asia, the auction house announced in August 2013, the sale of two extremely rare diamonds at its Magnificent Jewels and Jadeite Autumn Sale 2013, coming up on October 7, 2013, at the Hong Kong Convention and Exhibition Center. One of these diamonds bearing Lot [...]