Diamond and natural pearl brooch, France, ca. 1920, briolette cut diamonds, old European cut diamonds, natural pearls, platinum, 4.9 × 3.5 cm, 9.2 g Vintage Jewels, Vintage Jewellery, Antique Jewelry, Art Deco Jewelry, High Jewelry, Jewelry Design, Belle Epoque, Bijoux Art Nouveau, Pearl Jewels