Ametrine 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 stunnin stone is a rare beauty. This piece features some beautiful shades of purple and golden yellow, weighing 184.50Cts., measuring 36X27X18mm and being internally clean your creation will be truely mezmerizing when finished.