The Okavango Blue Diamond, a dazzling 20.46-carat stone, is more than just a beautiful jewel-it's practically a miracle of ...

The jewel surpassed its pre-auction high estimate to become the second most expensive sold at auction globally this year.

Diamonds come in all sorts of shapes, sizes, and colors but there is one fancy color that is the rarest of them all.

This wedding season, jewellery design experts trace the resurgence of vibrant gemstones, and share tips to help you add a ...

Diamond’s allure as a gemstone and its use as a tool due to ... It also enables precision ‘doping’ with elements such as boron (in blue diamonds) for electrochemical applications, or ...

Some customers take the rough gem, but many opt to have their memorial ... Boron is the impurity that colors the rare blue diamonds found in nature — and is why many "memorial diamonds" come ...

The cushion-shaped brilliant-cut blue diamond with VVS1 clarity is mounted on a platinum ring and flanked ... The collection was led by a Cartier Art Deco platinum multi-gem and diamond brooch, circa ...

A Thai cleaner working for a Saudi prince took the gems in 1989. A rare 50 carat blue diamond was never recovered. Three Saudi diplomats were shot dead in Bangkok following the theft. Several top ...