Create your very own Sterling Silver Custom 4 Stone CZ Bypass Simulated Birthstone Mother's Ring by selecting four round shaped cubic zirconia stones. Made with high quality .925 sterling silver, this custom ring allows you to select four out of twelve colored stones to represent the birthdays of those you love. Set in a 4 prong settings, the four personalized cz stones create a bypass ring design with preset white cubic zirconia accents that run in a split fashion along its side. About 4.9 grams in weight, this custom ring is about 1/2 inch at its widest and creates a stunning mother's ring, family ring, anniversary band or a just because ring. Perfect for Mother's Day, Valentines Day, Christmas or birthday, this elegant custom ring is available in ring sizes 5 to 9. Configure this piece in any way you would like to, choosing from numerous gemstone colors and styles. Customize Your Ring Perfectly, choose from numerous configurations. For a custom birthstone piece, choose from the following birth month stones for your ring's design: January [Garnet], February [Amethyst], March [Aquamarine], April [Diamond], May [Emerald], June [Alexandrite], July [Ruby], August [Peridot], September [Sapphire], October [Tourmaline], November [Citrine], December [Zircon] -- The stones are made of cubic zirconia. They are all round in shape, and a number of colors are available. They are synthetic stones.