AN ART DECO DIAMOND AND NATURAL PEARL 'CLIQUET' BROOCH, CARTIER

AN ART DECO DIAMOND AND NATURAL PEARL 'CLIQUET' BROOCH, CARTIER
Drop-shaped cream-colored natural pearl of 9.75-10.20 x 17.55 mm, two oval drop-shaped brownish gray natural pearls of 7.78-7.97 x 9.16 and 7.35-7.37 x 8.55 mm, old-cut diamonds, platinum (French marks), 4 ½ ins., 1922, unsigned, workshop mark (Atelier Renault), red Cartier case
Cartier, 2006: Certificate of Authenticity
SSEF, 2006, report no. 47780: Drop-shaped, cream color, natural pearl, saltwater
SSEF, 2006, report no. 47779: Two drop-shaped, brownish gray color, natural pearls, no indications of artificial color modification