Natural Color Change Sapphire, Diamond, 18k White Gold Ring. Featuring one round-cut color change sapphire weighing approximately 1.56 ct., accented by full-cut diamonds weighing a total of approximately 0.55 cttw., set in an 18k white gold mounting. Accompanied by a GIA Gemological Report No. 6204492369 dated August 8, 2019 stating "Natural Corundum, Natural Sapphire. No Indications of Heating. Color: Violet changing to Pink-Purple." {Size: 6 3/4, Gross Weight: 3.2 dwts}