Necklaces / Pendants by Selina Campbell Comes on 16" - 18" adjustable chain. Features Primary Material : sterling silver Other Materials : pearl Length (inches) : 18 One of a Kind : No Metal : sterling silver Gems : freshwater pearl Hallmarked : No Cleaning InstructionsOxidised Jewellery doesn't require any cleaning. However the surface can shine up with wearing try to keep dry to prolong it black colour