Wow! I have never seen this piece before. A wonderful Grape Design Brooch by Coro with 8 large Saphiret/Sapphirine Glass Stones. They vary dramatically from rich mocha to bright blue flash. The brooch measures 2 3/8" long by 1 5/8" at its widest.Each saphiret measures 5/8" long by 7/16" wide. The Coro mark is illegible only the C of Copyright can be clearly identified. Condition is Very Good to Excellent. You can see a the edges of setting through stones a bit when holding to light and they are foil backed.