There is only one factor that contributes to the twinkle of a gem: diamond cut. This refers to the polish, proportions, and ...

The historic legal agreement that arranged for the cutting of the world's largest diamond is being auctioned later this month The story behind the cutting of the world’s largest gem-quality ...

(Photo courtesy Sotheby’s) Today, Sotheby’s announced that a rare Emerald-cut 100.2-carat perfect diamond will lead its April 21 Magnificent Jewels sale. The stone is just one of six diamonds ...

Economic conditions led the company to cutting prices by 10% at ... gold and even other colored gemstones. The slogan was coined by diamond giant De Beers in 1948, capturing the impression of ...

Chip Clark The Blue Heart Diamond, cut from a 100-carat stone found at the Premiere Mine in South Africa in 1909, had several owners before being donated to the Smithsonian by Marjorie ...