I have been shopping around for a while looking for a nicely cut RB for a pendant. Also been knocking around the idea of maybe an Old Mine Cut or Old European Cut stone, but haven't had much success locating any. A local jeweler told me they're as scarce as hen's teeth! What is the difference between an OMC and OEC? Any ideas where I could find some on-line? My BF's mother has a gorgeous OEC and I've always admired it. Such brilliance! Thanks for your help!