This Record-Breaking Ring Has 12,638 Diamonds but Appears Too Big to Wear The ring, which was made by Renani Jewels in India, broke the Guinness World Record for most diamonds set in one ring. By Helen Holmes
Blue Diamonds Are Proof the Earth Recycles A new study shows that the stones form in the hellish bowels of the Earth. By Amy Thompson
Sotheby’s Couldn’t Sell a 37-Carat Pink Diamond—Because It Lacks ‘History’ The auction stalled at $14 million, only half of the giant stone's pre-sale estimate. By Sissi Cao