Making a mold from polymer clay master

[Moxie]

Hey guys! So I may have made a mistake. I am trying to make a silver pendant, and I put a lot of work into my master sculpture. However, I made it out of polymer clay thinking it would work, and a jeweler I spoke to said they would be able to do it, however I'd like to try it myself. I can't find any way to make a mold of it that I would be able to then use to cast the real thing. The pendant is very small (2.5 inches long), and has very fine detail.

Is there any way for me to make this work without redoing it in anther medium? Thank you so much for any input!

[josef1]

Maybe you could use rtv rubber then inject wax into the cavity

http://www.flexiblejewelrymolds.com/...technique.html

then use lost wax method to cast it, The casting part may be best done by a casting service as you need the equipment .