Vintage platinum

All, I have to take the oval three stone top of an antique ring off
and weld it to a new ring the customer wants a pierced gallery hand
engraved platinum ring. I will have to make it if I cannot find one
I was thinking of carving a blank wax and either having someone
engrave and pierce the wax and casting the engraved wax in platinum
or casting the platinum and having the hand engraver pierce and
engrave the metal. Any suggestions?

J Morley Goldsmith/Laserwelding