This necklace features lustrous black Freshwater pearls set on a rhodium-plated sterling silver chain. Black Freshwater pearls Lobster claw clasp Material: Rhodium-plated .925 sterling silver Imported Black Freshwater Pearls measures approximately 8.5-9mm Approximately 20in long From simple strands, to embellished pieces, the quality is unmistakable. It is customary to treat most gemstones to achieve enhanced color and durability. Some of these treatments may not be permanent, and may require special care.