Model is ready for 3D Printing and prototyping on CNC. Geometry is healed, and fixed all the bad with RP Magics software bride Ring sizes: inner diameter mm : 16 | 16,5 | 17 | 17.5 | 18 | 18.5 Size USA: 5.5 | 6 | 6.5 | 7.25 | 7.75 | 8.5groom Ring sizes: inner diameter mm : 20 | 20.5 | 21 | 21.5 | 22 Size USA: 10.25 | 10.75 | 11.5 | 12 | 12.75Approximate metal weight on pictures for 18.5 and 20 sizesYou can check out my other products by clicking on the author name s.kim_jewelry_design. Any questions? Please contact me. instagram @s.kim_jewelry_design email skimjewelrydesign@gmail.com facebook s.kim_jewelry_design youtube SKIM Jewelry Design