18 KARAT GOLD, MOTHER-OF-PEARL, RUBY AND DIAMOND FLOWER BROOCH, STERLÉ, PARIS, CIRCA 1965. Designed as a calla lily composed of a carved mother-of-pearl segment, the stem set with calibré-cut rubies, the petal and spadix accented by round and single-cut diamonds weighing approximately 1.85 carats, signed Sterlé, Paris, maker's mark, French assay marks. High Jewelry, Pearl Jewelry, Jewelry Art, Antique Jewelry, Jewelery, Gold Jewelry, Vintage Jewelry, Jewelry Accessories, Jewelry Design