Jewelry 3D CAD Engagement Ring STL File Format CC1 3D STL File format digital downloadable file it is ring 3d design for jewelers direct to make 3d printing wax resin and than can cast in any metal or take mold silicon . Details 2 , Diamond , Round , Diamond , X=1.30 , Y=1.30 , Z=.80 , .01ct. (total .02ct.) 1 , Diamond , Round , Diamond , X=6.50 , Y=6.50 , Z=3.96 , 1.02ct. (total 1.02ct.) Total Gems: 3 Total Weight: 1.04ct. Gold 18 kt. 4.60 gr. Gold 14 kt. 4.00 gr.