The most expensive gemstones in the world and the ones that are most often traded are Diamonds, Sapphire and Rubies. Until recently the magic $1 million per carat mark was only achieved by colored Diamonds.
The most expensive gemstones in the world and the ones that are most often traded are Diamonds, Sapphire and Rubies. Until recently the magic $1 million per carat mark was only achieved by colored Diamonds.