A mid 20th century platinum, Sri Lankan sapphire and diamond three-stone ring, with report from GCS stating Sri Lanka (Ceylon), no indications of heating, estimated weight 4.60ct, estimated total diamond weight 0.20ct, H-I colour, VS clarity, stamped 10% IRID PLAT, ring size M1/2, 5g

Estimate: £2,500 - £3,500

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