Our work is always made in very low numbers - nothing mass-produced here! Material: Silver, white gold, High carbonised Synthetic diamond We do not like those bloody stories behind those natural diamonds, just like we do not like those fashion brands use real fur in their fashion collections. High-carbonised Synthetic diamonds are great alternatives for jewellery designers to create luxurious and eye-catching pieces of jewellery at affordable prices. Environmental Standard: Nickel-free, Lead-free, Cadmium free. Hypoallergenic，No harm to your skin. We promise fast international shipping service. Check the chart to find your ring size, If you are still not sure with your ring size, follow the instruction at http://findmyringsize.com/ to find your exact ring size. Ring Sizes USA Size 5 = about 16mm diameter USA Size 6 = about 16.5mm diameter USA Size 7 = about 17.5mm diameter USA Size 8 = about 18mm diameter USA Size 9 = about 19mm diameter USA Size 10 = about 20mm diameter USA Size 11 = about 20.5mm diameter USA Size 12 = about 21.5mm diameter USA size 13 = about 22.5mm diameter USA size 14 = about 23mm diameter Inlay material: pure silver inlaid Gemstone Material: Silver Purity: 925 Silver