SAPPHIRE AND DIAMOND RING
Oval-cut sapphire of 18.58 carats, circular, old and rose-cut diamonds, ring size N
Gem & Pearl Laboratory, 2019, report no. 17145: Sri Lanka, no evidence of heat treatment
SAPPHIRE AND DIAMOND RING
Oval-cut sapphire of 18.58 carats, circular, old and rose-cut diamonds, ring size N
Gem & Pearl Laboratory, 2019, report no. 17145: Sri Lanka, no evidence of heat treatment
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