Grandidierite was found in 1902 in the south of Madagascar. The name was given by A. Lacroix in honor of the naturalist Alfred Grandidier. One on the rarest gemstones on Earth. Gem quality stones with a high degree of transparency and good clarity is really scarce. Hardness 7/7,5 on the Mohs scale. Collector gemstone.
New: Gem quality Grandidierite with high clarity. Many stones available (from 0,29 to 0,68 carat) but not online yet, don’t hesitate to contact us for more informations. National Jeweller article:

Quelques exemples de grandidiérites de qualité gemme en stock ICI.