This product is a 2-piece lot of Australian Teal Sapphire gemstones, each measuring 3x5mm in an octagon cut. The gemstones are transparent with a green and blue color, and have a very good cut grade with an asterism effect. They are natural, unheated/untreated, and not enhanced. The gemstones are sourced from Australia and are vintage, making them a unique and high-quality addition to any jewelry collection.