This model has been produced and technically tested The size of this ring is 57Printed with resin and casted by goldIts weight with different metals are:Yellow gold 18k: 3.85 gramsYellow gold 22k: 4.47 gramsWhite gold 18k: 3.66 grams925 silver: 2.59 gramsPlatinum: 5.02 gramsRose Gold 18 3.97 gramsTitanium: 1.13 gramsSteel: 1.92 gramsWeight with other metals are available in photos If you have any suggestions or comments to improve the design, please let me knowseveral photos from model have been uplouded for you to have a good purchase feel free to ask me when you have eny issues.If you have any questions or suggestions, please let me know, I am ready to answerVisit my models and send me your commentGood luck