From brilliant blues to fiery reds, discover how nature crafts diamonds in every color, and why some shades are rarer than ...

Laid out like an orchestra in a quiet gallery room, 40 colorful gems have one of the planet’s most distinguished conductors: a red diamond, 2.33 of the rarest carats in the world, shining like a ...

along with complimentary ring resizing and polishing services. I tapped into my knowledge as a gem expert to pick the best lab-grown diamonds for any occasion.

The extremely rare, 10-carat Mediterranean Blue diamond could fetch a whopping $20 million at Sotheby's High Jewelry auction ...