Identifying 'KTC' on a Vintage Ring: What Does It Mean?

Question
I found an old ring.  It has a medium size green stone and three tiny diamond looking stones.  KTC is stamped on the inside of the ring.  I was wondering what the KTC stood for.

Answer
Hello Brenda and thank you for your inquiry. I have checked my resources and have not been able to find an identification for KTC. I believe, however, that this is the manufacturer of the ring. If you believe it is precious metal/gems you should have it checked by a professional. They may also be able to shed some light on the manufacturer especially if it is a newer ring. Most of my resources deal in vintage or antique jewelry. Sorry I couldn't be of more help to you on this but if I find anything, I will let you know.
Enjoy your ring.
Sally at jarrettsjade.com