Carolyn Pollack Sterling Silver Mother of Pearl Butterfly Necklace Genuine Blue Mother of Pearl and .925 Sterling Silver Station pendant measures 1-1/2" long x 1" wide; Necklace measures 17" long See Ruler View for accurate sizing. Silver may tarnish over time. Handcrafted in America with lifetime warranty on all jewelry Blue mother of pearl gemstones create the beautiful backdrop of a butterfly.