American West Fritz Casuse Sterling Silver Mixed Metal Turquoise Blue Topaz Hummingbird Ring Genuine Turquoise & Blue Topaz, Brass, and .925 Sterling Silver Measures 5/8" L x 3/4" W See Ruler View for accurate sizing. Silver may tarnish over time. Handcrafted in America with lifetime warranty on all jewelry Award-winning Native American designer Fritz Casuse - A hummingbird feeds from a blue topaz flower.