Dormith&reg; Fashion Women's Classics 925 Sterling Silver Synthetic Blue Fire Opal 5mm Stackable Rings Dormith Fashion Women's 925 Sterling Silver Charm Blue Fire Opal Rings Material: pure 925 sterling silver.Synthetic opal;Excellent crafts and materials show a top quality Ring size: 22.5*5mm. Finger size:7#,8#.weight:4.5g. Tarnish-free and anti-allergic, lead-free. Guaranted authentic, money-back satisfaction guaranted by Dormith. Desinged by Dormith.makes your life more beautiful.