JEWELRY ENGAGEMENT RING STL FILE FOR DOWNLOAD AND PRINT- CC43 Gems sizes and quantities 1 Diamond Round 6.5 mm X 6.5 mm Matrix layer name 6.5 mm 2 Diamond Round 3.5 mm x 3.5 mm Matrix layer name 3.5 mm Ring Rail size and Gold weight Ring Rail size US 6 Ring Gold 18 kt weight 4.60 gr.