ring diameter 19mm available here: https://www.cgtrader.com/3d-print-models/jewelry/rings/ring-tech
Ring size : 18.9 mm, 19.8mm, 20.6mm (US size 9, 10 and 11) Gem Heart : 4.75mm Сonsists of 2 parts. Ring size and the size of the main stone can be changed by the customer. In this case, please contact me.
Model is ready for prototyping on CNC and 3D Printing.