A diamond cutter holds a vial of diamond powder, the only material that can be used to cut diamonds, Thursday, Dec. 21, 2006 at a laboratory of Robert Klein Diamonds in New
Lucapa Sells 170-Carat Pink Diamond Unearthed This Summer | National Jeweler
Weird Hexagonal Diamonds From Another Planet Discovered on Earth
WHY ARE DIAMONDS CALLED DIAMOND? – Jewelry Secrets