Art Deco pink sapphire, rock crystal and diamond oblong cluster ring, French c.1925, possibly by Rene Boivin, collet set with a rectangular cushion cut Burma pink sapphire, | Object | S. J. Phillips

Art Deco pink sapphire, rock crystal and diamond oblong cluster ring, French c.1925, possibly by Rene Boivin, collet set with a rectangular cushion cut Burma pink sapphire,
Price: £20,000-£50,000
Ref No. 67526
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Description
to a frosted rock crystal frame, diamond line edge top and bottom and diamond line shoulders, mounted in platinum and white gold, serial number within 5550, French platinum assaymark, partial workshop mark possibly RB, the pink sapphire approximately 4ct, accompanied by AGL report no. CS71518 for the pink sapphire giving the Burma origin opinion and that the stone shows no evidence of heat treatment
The cluster head 21.0 x 13.5mm
Pink sapphire approximately 11.8 x 8.0 x 4.5mm
Weight: 7.5g
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Art Deco pink sapphire, rock crystal and diamond oblong cluster ring, French c.1925, possibly by Rene Boivin, collet set with a rectangular cushion cut Burma pink sapphire,

67526

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