Handcrafted by my husband, 2017 Ellis Island quarter dollar coin ring. Approx. 90% CU (copper) 10% NI (nickel). Size 8 1/4- 8 1/2. The antique finish happens during the firing process where the raised parts have more contrast after polishing and makes it look super cool! Coated with protective coating. Crystal not included. Any questions just ask! Thanks for checking it out.