AN ART DECO EMERALD, SAPPHIRE AND DIAMOND BELT BUCKLE-BROOCH, CARTIER Octagonal step-cut emerald of 38.71 carats, buff-top calibré-cut sapphires and emeralds, old and single-cut diamonds, platinum and 18k white gold (French marks), 3 ½ ins., 1922, unsigned, partial maker's mark (Atelier Renault), no. 0346, red Cartier case Cartier, 2004: Certificate of Authenticity AGL, 2019, report no. 1100313: 38.71 carats, Classic Colombia, insignificant to minor clarity enhancement, traditional type Gübelin, 2008, report no. 0801570: 38.71 carats, Colombia, indications of minor clarity enhancement Provenance Sybil Sassoon, Marchioness of Cholmondeley (1894-1989)
AN ART DECO EMERALD, SAPPHIRE AND DIAMOND BELT BUCKLE-BROOCH, CARTIER Octagonal step-cut emerald of 38.71 carats, buff-top calibré-cut sapphires and emeralds, old and single-cut diamonds, platinum and 18k white gold (French marks), 3 ½ ins., 1922, unsigned, partial maker's mark (Atelier Renault), no. 0346, red Cartier case Cartier, 2004: Certificate of Authenticity AGL, 2019, report no. 1100313: 38.71 carats, Classic Colombia, insignificant to minor clarity enhancement, traditional type Gübelin, 2008, report no. 0801570: 38.71 carats, Colombia, indications of minor clarity enhancement Provenance Sybil Sassoon, Marchioness of Cholmondeley (1894-1989)
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