|Demantoid gets its name from the Dutch words for “diamond-like.” The stone owes its impressive brilliance to two main factors: A high refractive index and a high dispersion.|
Demantoid’s dispersion rating is the highest of all gemstones, including diamond. Known for their brilliant green color and fiery dispersion, demantoid garnets are unique because their inclusions — usually seen as flaws in other gems — are considered highly coveted aesthetic attributes.
|Demantoid garnet is mined in other parts of the world, including Iran, Namibia, Pakistan, Italy, Madagascar and Canada, but Russian demantoid sets the mark by which all the others are compared. Demantoid garnets are rarely found in sizes larger than 2 carats.|