this is a free model from me and i hope its usefull for you

Simple Wedding Ring SetWith Suitable Weight

• Man's Ring Weight :

9K gold = 5.1 gr

10k gold = 5.25 gr

14k gold = 5.9 gr

18k gold = 7.1 gr

22k gold = 8.2 gr

silver 925 = 4.5 gr

• Woman's Ring Weight :

9K gold = 4.6 gr

10k gold = 4.7 gr

14k gold = 5.3 gr

18k gold = 6.4 gr

22k gold = 7.4 gr

silver 925 = 4 gr

• man's Ring size:

68 EU / 12 USA / X UK

• Woman's Ring size:

60 EU / 9 USA / R UK

• Inside diameter ( Man's Ring ) :

21.39 mm / 0.842 in

• Inside diameter ( Woman's Ring ) :

18.95 mm / 0.746 in

• Gems : Each of the Rings has 16 Piece of 1.6mm Round Cut Gem ( 0.015 ct )

All the required dimensions are available in the pictures and you can see them in the pictures.

.Suitable for any 3d printing

.Designed with All the principles of Goldsmithing

.Designed without problems in the Manufacturing Process.

All Work includes a Warranty and you can contact me in case of any problems