A rare diamond exhibit in Abu Dhabi, United Arab Emirates, featured a special blue diamond, with the exhibit's worth totaling ...

The Mediterranean Blue represents one of nature's rarest gems. Any vivid blue diamond is a discovery worth celebrating, but one as entrancing as this, particularly being over 10-carats ...

the rare gem attracts 6 million visitors a year to the Natural History Museum. Chip Clark The Blue Heart Diamond, cut from a 100-carat stone found at the Premiere Mine in South Africa in 1909 ...

Christie’s is getting ready to present The Golconda Blue, the largest Fancy Vivid Blue Diamond ever to be offered at auction.

When unearthed, most diamonds appear roughly rounded with perhaps a hint of regular crystal form. Many are colorless, but most are pale shades of yellow; red, orange, green, blue, brown ...

a London banker and gem collector, owned the stone in the 1830s. The diamond weighs 45.52 carats and is not blindingly white, as we are accustomed to seeing diamonds, but deep blue. It's in a ...

A rare blue diamond valued at $20 million went on pre-auction display on Tuesday in Abu Dhabi, capital of the oil-rich United ...

Blue, pink, purple ... While some gemstones are crystals, not all crystals are gemstones. Diamonds, amethyst, aquamarine, and ...

More than 4,000 naturally occurring minerals—inorganic solids that have a characteristic chemical composition and specific crystal ... gems, many quite beautiful, but diamonds, rubies, sapphires ...

These rare gems take on different hues ... and structural irregularities in their crystal lattice: * Yellow Diamonds contain ...

A rare blue diamond was on display Tuesday at an exhibition of $100 million worth of the world’s rarest diamonds in the United Arab Emirates’ capital, Abu Dhabi. The eight diamonds on display ...