Schreiner Jewelry Co. New York Costume Jewelry Brooch

I found this lovely and most decadent costume brooch in a charity shop. It is hallmarked Schreiner New York on a small button on the back of the brooch, It is 4 inches wide and 3 inches high with a large clear center stone. Topaz colored, foil back cabs(reverse facets) and more round cut clear colored tones adorn this piece. I have read about the Schreiner company and have seen other lovely works, but none yet as decadent as this. Thank you in advance.

Excellent