Ciondolo con catena a goccia con prisma in onice nero geometrico esagono in argento sterling 925About This Item A sharp and modern black onyx gemstone faceted with a geometric cut set into a polished 925 sterling silver bezel setting. Gemstone Information Onyx is a banded semi precious gemstone with a name originating from the Latin for 'claw.' Black onyx teams untamed natural beauty with powerful shades of darkness. Whether set in sterling silver or paired with gold, black onyx jewellery illustrates beauty with an edge. Jewellery Collection