This is classic anniversary three stones diamond ring features pave setting of accent stones and 2 surprise stones.
Metal weight for finger sizes: 6.25 US (16.75 mm D) mm D : Silver 925(Sterling)= 2.43 Gr, White Gold 14KW=2.95 Gr, 18KW=3.44 Gr, Size and quantity stones: Central -Round 5.1 mm -1, 3.0 mm-2 Surprise gems : Rd 1.4mm -2 Accent side stones: Rd 1.5 mm-8 Total diamond weight =0.83 Ct. Files in STL and 3 DM formats of this ring available for download for finger sizes: US 6.25, 7, 7.5, 8 If you require other specific sizes for this ring, you can contact with me via private message. STL mesh file checked with Rhino5 and Autodesk Netfabb software. STL files has a good closed mesh and orientable surfaces, which will allow you to get very good 3D printing result and surface quality.