This sapphire is a museum quality super rare all natural perfect crystal. It is double terminated with natural hexagon crystal structure. This stone is Facet grade with a beautiful medium blue green natural color. A one of a kind piece completely irreplaceable. Montana sapphires of this size shape and clarity are almost never seen it would be a shame to facet this stone even though it is facet grade. It was mined in the 2018 mining season from blaze-n-gems eldorado bar mine just outside of Helena Montana off the missori river. This sapphire would enhance any collection one of the best and biggest crystals we've ever unearthed from our mine. This is the only sapphire of this caliber for sale. This stone has received no treatment of any kind it is all natural just as mother nature gave it to us.

Size: 20.77ct

Dimensions: 12.9x11.9x11.0mm

Color: Blue-Green

Clarity: vs

Stone: Sapphire

Hardness: 9