-3dm and .stl format-Ring size is Swiss-22 (US 9.75)(EURO 62) -It can also be used for 2-3 sizes larger.-Stone size is 10.2x14.3 and depth is 5.5 mm (I produced it for a special stone)-Metal weights .14K Gold 3.93 gr. .18K Gold 4.71 gr. .22K Gold 5.46 gr. .925 Sterling 3.16 gr. .If you would like me to change the stone sizes, please write.