Carolyn Pollack Sterling Silver Blue Chalcedony Bow Ring Genuine Blue Chalcedony and .925 Sterling Silver Measures approximately 7/8" 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 Highly polished sterling silver crafted into openwork ribbons surrounds a blue chalcedony cabochon.