AN ART DECO SAPPHIRE, DIAMOND AND ONYX NECKLACE, BY MAUBOUSSIN
The cabochon star sapphire, weighing approximately 86.53 carats, suspended from a diamond, black enamel, onyx ring and carved sapphire top, to the detachable diamond-set link chain, circa 1926, chain 50.0 cm, pendant 7.6 cm, with French assay mark for platinum
Signed Mauboussin France
Accompanied by report no. GRS2011-033660 dated 22 October 2011 from the GRS GemResearch Swisslab stating that the cabochon sapphire is of Burmese origin, with no indication of thermal treatment
AN ART DECO SAPPHIRE, DIAMOND AND ONYX NECKLACE, BY MAUBOUSSIN
The cabochon star sapphire, weighing approximately 86.53 carats, suspended from a diamond, black enamel, onyx ring and carved sapphire top, to the detachable diamond-set link chain, circa 1926, chain 50.0 cm, pendant 7.6 cm, with French assay mark for platinum
Signed Mauboussin France
Accompanied by report no. GRS2011-033660 dated 22 October 2011 from the GRS GemResearch Swisslab stating that the cabochon sapphire is of Burmese origin, with no indication of thermal treatment
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