Coro Aurora Borealis Rhinestone Flower Brooch

I'm not sure if this Vintage Coro Aurora Borealis Rhinestone Brooch is representative of Lupine, Delphinium, or other similar type of flower spike, or if it's Corn on the Cob, but it is stunning! Signed: Coro Size: 3 3/8" Tall, 1 3/8" Wide Appears to be in Excellent Vintage Condition. Please look at all the photos for the most accurate and detailed description.