The 158.20-carat rock is one of only five yellow diamonds weighing more than 100 carats ever found at Diavik in its 22-year ...

Before the discovery, the 1,758-carat stone Sewelô was the largest diamond discovered in Botswana ... accounting for about 20% of global production, a report by GlobalData says.

Diamond expert and celebrity jeweler Michael Greene gave PEOPLE all the details on the gigantic, pear-shaped sparkler Zylka proposed with over the weekend in Aspen. The 20-carat center stone is ...

The 15.10-carat De Beers Cullinan, meanwhile, sold for a whopping $57.5 million three years ago; also discovered in the Cullinan mine, that stone remains the largest blue diamond to ever come to ...