Family Mothers Ring 2 to 6 Birthstones (Swarovski zirconia) 10k White,Yellow or Rose Gold FREE ENGRAVING Customizable with 2 3 4 5 or 6 imitation birthstones of your choice The birthstones are Fancy Color Swarovski zirconia, Round Pure Brilliance cut, 2.5mm each Available in solid 10k white, yellow or rose gold. Top width: 3.6mm; Bottom shank: 2mm Leatherette ring box