Metal: Alchemia Lead Free, Nickel Free, Hypoallergenic Baked lacquer finish to protect metal from turning or tarnishing Mystic Quartz: 18mm x 13mm Adjustable 5mm Ring Shank Fits Ring Sizes: 5-10 10mm - Height of Ring Handcrafted and artisan made All pieces are stamped or hallmarked for authenticity Nothing short of enthralling, the Alchemia Mystic Quartz Ring will capture attention endlessly. Feel mystical in your own ring with its kaleidoscope of colors. Pair with the Alchemia Mystic Quartz Mini Cuff, Mystic Quartz Pendant, and the Alchemia Mystic Quartz Drop or Post Earrings for a completed look! Day and evening wear