The product is a pair of 12.11 carat Grandidierite loose gemstones from Madagascar. These transparent blue-green gemstones are cut to an excellent grade and have a cabochon shape. They are 100% unheated and moderately included in clarity. The gemstones are certified on customer request and are from the brand Luckygems International. Perfect for jewelry and watches, these natural gemstones are sourced from Madagascar and have dimensions of 16.11 mm in length, 14.64 mm in width, and 6.79 mm in depth.