Sapphire 1.18 ct spinel though sometimes miners heat the

though sometimes miners heat the rough directly at t

A vibrant orange untreated imperial topaz from Ouro Preto

A beautiful teal-green to parti-colored unheated sapphire from small-scale mining in Australia

An elegant gray spinel from Mozambique

Sapphire 1.18 ct spinel though sometimes miners heat theA green Sapphire from small scale mining in Diego, Madagascar. Brilliant oval cut. Disclaimer: This Sapphire was purchased as unheated rough directly at the mine. Our internal examination showed no signs of heat treatment, and in the past, over 95% of this material has been confirmed as unheated by external laboratories. If you would like verification by an external gemologist or laboratory, we can arrange this. Please note that the shipping time will