Granium Heirloom NecklaceDescription Drawn from antiquity, this charm is named for the Latin word for granulation, an ancient technique where the surface of a jewel is decorated with small golden spheres. This charm features a diamond framed by a granulated pyramid pattern, and is crafted from lustrous 18k yellow gold. The charm comes on a hinge bail that opens up and can be attached to any chain. Details 18k yellow gold Round faceted diamonds (. 11 ct) Length: 11. 5mm;