COLOUR-CHANGE SAPPHIRE AND DIAMOND RING
Cabochon colour-change sapphire of 25.01 carats, circular and pear-shaped diamonds, gold, ring size 6 ½
Gübelin, 2019, report no. 19010004: approximately 27.6 carats, colour-change, Sri Lanka (Ceylon), no indications of heating
COLOUR-CHANGE SAPPHIRE AND DIAMOND RING
Cabochon colour-change sapphire of 25.01 carats, circular and pear-shaped diamonds, gold, ring size 6 ½
Gübelin, 2019, report no. 19010004: approximately 27.6 carats, colour-change, Sri Lanka (Ceylon), no indications of heating