London-Gem Diamonds Ltd made it's largest gem quality rough diamond find to date this year when it pulled a 198 carat piece of rough from the Letseng mine in the Kindom of Lesotho in July. The latest in a line of 100+ carat stones found this year.
Roughly the size of a large strawberry the stone is a Type IIa diamond and is described by Gem Diamonds as an "expectional white, high-quality diamond that displays no florescence."
The stone is estimated to sell for $12 million to $15 million.
You can also search Recommended Diamonds by Arthur's Jewelers.
This article was based off an article written by Michelle Graff from National Jeweler - Jewelry Industry News.