This is for a Charoite Cabochon gemstone with lots of Chatoyance. This is a triangle shape stone.Discovered in Russia in 1978 in the Murun Mountains in Yakutia. This the only known location for this rare mineral. The name Charoite is derived from the Charo River which is near where it was found.Charoite is so unusual looking with its Chatoyancy and unusual looking spirally strands of fibrous clear material. I do show this on my finger (I have big hands), so you can get a visual of the size.It is 6 carats and is 11mm at its widest point by 27mm long.