Carolyn Pollack Sterling Silver Blue Lace Agate Pendant Enhancer Genuine Blue Lace Agate and .925 Sterling Silver Measures 2-1/2" 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 sits in a stunning framework of highly polished silver shaped with a scroll design.