Ametrine is all natural quartz that is a combination both Citrine and Amethyst creating a truly stunning mix of colors within these exquisit stones. Coming from only one mine in the world located in Bolivia this stunning stone is a rare beauty. With a hardness of 7 this piece features some lovely shades of purple and golden yellow ametrine, weighing 40.01 cts., measuring 18x17x14mm and being eye clean your creation will be truely mezmerizing when finished.