Carolyn Pollack Sterling Silver Blue Lace Agate Calla Lily Pendant Enhancer Genuine Blue Lace Agate and .925 Sterling Silver Measures 2-3/4" long x 1" wide See Ruler View for accurate sizing. Silver may tarnish over time. Handcrafted in America with lifetime warranty on all jewelry Blue lace agate cabochon in an oval shape is wrapped in a stunning frame of sterling silver.