Extremely Rare Grandidierite Cut Stone From Madagascar - 3.80 Carats

Description: This is one of the rarest minerals in the world, a fine greenish blue Grandidierite cut stone from Madagascar. It has very good transluscency. Fine specimen, and is considered one of the 10 rarest gemstones based on numerous articles.
Location: Mandrare, Betroka, Madagascar
Size: 11x9 Millimeters
Weight: 3.80 Carats