Vintage Tiered Rainbow Givre Rhinestone Flower Brooch Selini?

Gorgeous vintage tiered rainbow iris rhinestone brooch featuring bumpy art glass givre stones in pink, green and blue and matching striped rhinestones. Really beautiful coloring on all the stones, and very unusual, with an extra vividly colored striped rhinestone center. Great five layer brooch with soft pink round rhinestones sprinkled throughout, on goldtone metal. It's unmarked but I've seen this design attributed to Selini/Selro. Wonderful vintage condition with no issues, and measures a nice size at 2" in diameter.