Carolyn Pollack Sterling Silver Black Spinel Pendant Necklace, 17 Inch Genuine Black Spinel and .925 Sterling Silver Necklace measures 17" long x 1/4" wide plus 3" extender; pendant with bail measures 2-5/8" long x 7/8" wide See Ruler View for accurate sizing. Silver may tarnish over time. Handcrafted in America with lifetime warranty on all jewelry Necklace of faceted black spinel beads with attached pendant of sterling silver and black spinel.