A couple from Tampa, Florida, struck it rich at the Crater of Diamonds on July 1, uncovering a white 3.36-carat diamond.

Coloured diamonds are geological anomalies. Variations include pink, blue, orange, yellow, red, green, brown and black, most of which can be explained by impurities in their crystal lattice.

Rio Tinto has unearthed a purple diamond weighing 0.45 carats at its Diavik mine, an unusual find at a site that generally produces white stones. A trace element like hydrogen or a twist in the ...

The first engagement ring David gave Victoria when he proposed in 1998 was a three-carat marquise-cut diamond on a yellow gold band. That ring was said to cost $85,000 back then. Three years later ...