SAPPHIRE AND DIAMOND RING, CARTIER
Cushion-shaped sapphire of 33.93 carats, circular, square and single-cut diamonds, platinum, (London hallmarks), possibly adapted from an Art Déco brooch, sprung insert, ring size L, 1980, signed Cartier, maker's mark, red Cartier case
Gem & Pearl Laboratory, 2018, report no. 16223: 33.93 carats, Sri Lanka, no evidence of heat treatment
SAPPHIRE AND DIAMOND RING, CARTIER
Cushion-shaped sapphire of 33.93 carats, circular, square and single-cut diamonds, platinum, (London hallmarks), possibly adapted from an Art Déco brooch, sprung insert, ring size L, 1980, signed Cartier, maker's mark, red Cartier case
Gem & Pearl Laboratory, 2018, report no. 16223: 33.93 carats, Sri Lanka, no evidence of heat treatment
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