Read about Fancy Red Diamonds

The color red is generally associated with love, passion, and strength, therefore it is very fitting that the world’s rarest, most desirable and most valuable of the fancy natural colored diamonds is the red diamond! Red diamonds are so rare that it is believed that thirty true ‘predominantly red’ diamonds are in existence, and most are smaller than half a carat - ‘predominantly red’ is the description given by the GIA that indicates that red is the primary color in the diamond with no secondary hues such as purple. Here we take a look at the phenomenon of the world rarest diamonds – the red diamond:

In short: Pure red is the rarest natural diamond color — fewer than 30 GIA-graded Fancy Red diamonds exist globally, and the most famous, the 0.95ct Hancock Red, sold for $926,000 per carat in 1987. Top Fancy Red 0.50ct+ stones run $1-$2 million per carat at auction. Color comes from rare plastic-deformation crystal structures rather than mineral impurities.

Why are red diamonds red?

In comparison to other natural fancy colored diamonds there is very little gemological information about red diamonds largely due to their scarcity. Colouring in diamonds is caused by various chemical impurities but as red diamonds are wholly comprised of pure carbon experts have long pondered how a gemstone with no such impurities attains such a striking and magnificent color? It is believed that the red color is due to rare deformities in the gemstones anatomical structure which resulted from increased stress during the formation of the diamond.