Estate Barbara Bixby Sterling Silver 18K Gold Rhodolite Frog Enhancer Pendant

Designer 925 and 18K gold frog enhancer pendant is signed Bixby China 925 18K and features four marquise Garnet Rhodolites and a small White Topaz, and a safety clasp on the enhancer.  The pendant measures 1 1/4 inches by 1 1/4 inches wide and it weighs 10.4 grams.  It is in very nice condition.  The chain in the last photo is not included.