Obj 3D model.
Model is ready for 3D Printing.

Geometry: Polygonal
Polygons: 226395
Vertices: 223542

This is a good mesh:
Mesh does not have any degenerate faces.
Mesh does not have any extremely short edges.
Mesh does not have any non manifold edges.
Mesh does not have any naked edges.
Mesh does not have any duplicate faces.

weight:
2.80g-silver 925
3.70g-gold 14k
4.00g-gold 18k

Gems:
brilliant
1x7.20mmx7.20mm
2x4.30mmx4.30mm

Ring size:
7 USA
diameter 17.50mm

Note:
Ring diameter can be easily changed only by changing the overall ring size.

Dimensions
you can see all dimensions in illustrations.