An Belle Epoque Tiffany & Co. brooch with two natural saltwater pearls with a looped diamond-set bow centering one old European-cut diamond approximately 0.40 ct., suspending two lines of 7 prong-set diamonds, tipped by one pinkish-brown pearl approximately 7.41 x 7.12 mm., and one pearl approximately 7.46 mm., capped by rose-cut diamonds, totaling 52 old European-cut diamonds approximately 2.90 cts., signed Tiffany & Co., circa 1905. The pearls accompany a gemological report from GIA stating that the pearls are natural, saltwater, no indications of treatment. Numbered 857