This elegant necklace features lustrous black Freshwater pearls set in rhodium-plated sterling silver. Black Freshwater pearls Hand-knotted on a silk cord Filigree clasp closure Material: Rhodium plated .925 sterling silver Black Freshwater Pearls measures approximately 6-9mm Approximately 18in 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.