Hi Marci, The jeweler gave you totaly wrong for a
one off casting in gold or silver.You should have made your wax
model exactly as you would have liked it to look
finished(remembering that you have to clean up and polish the
The only time that a wax is carved that much bigger is when a
wax will be converted to a master model that will be used to
create multiple production models (sizes 4 through10 or larger)
so that each size will have a model and mold of its own ,
eliminating the need to size the rings in mass production.
I suggest returning the metal for credit to the jeweler,
carving what you want , and have him recast it ,or send it to
someone like myself who does casting as a main profession.
If you want to take it down quickly and finish the piece which
sounds like a lot of work, I would use a cylindrical fine cut
carbide burr 1/4 " dia x 1/5 long to rough down the shape
internaly and externaly, then use small fiber wheels or rubber
wheels to smooth every thing out. Do the inside of the ring
first and put the ring on a ring mandrel to round out the ring
as you go along.
Hope this helps… check out the workshop at the adress below.
Daniel Grandi Tel/ Fax 401-461-7803
Racecar Jewelry Co.
PO box 10327
Cranston, RI 02910