RARE CORO (Script Mark) Incredible Rhinestone Inset Ribbon Metal Roses Brooch

Amazing, vintage, old mark CORO (script) figural large ribbon or bow brooch. The metal is gold tone, with a 1" oval faceted topaz crystal at the "knot" with two oval topaz stones on each "bow" and two amber emerald cut stones on the two "tails". The remainder of the brooch is covered with raised, dimensional, figural roses. I have never, ever, seen this brooch or an example of it. It is in great vintage condition with all the stones, minimal loss to the gold enamel from age and wear. The brooch measures 3 1/8" from side to side and 2 1/2" from top to bottom. Exquisite!