Metal: Alchemia Lead Free, Nickel Free, Hypoallergenic Baked lacquer finish to protect metal from turning or tarnishing Druse: Approximately 0.75" x 1" Due to one-of-a-kind nature of the stone, the color and shape pattern may vary from the picture shown. Adjustable 5mm Ring Shank Fits Ring Sizes: 5-10 Handcrafted and artisan made All pieces are stamped or hallmarked for authenticity