The product is a 14.90 Ct ultra blue green 100% natural Grandidierite loose gemstone from Madagascar. This transparent gemstone has an excellent cut grade and is in the shape of a cabochon. It is unheated and moderately included in clarity. The gemstone is certified upon customer request and comes from the brand Luckygems International. With dimensions of 16.14 mm in length, 8.86 mm in depth, and 14.13 mm in width, this unique and rare gemstone is a beautiful addition to any jewelry or watch collection.