About the brand: From simple strands, to embellished pieces, the quality is unmistakable. Rhodium-plated .925 sterling silver Multicolor Freshwater Pearls measures approximately 7-10mm Cubic zirconia Approximately 19in long Lobster claw clasp closure 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.