502
A Sapphire and Diamond Ring
One oval cabochon sapphire, 16.17 caratsSurrounded by two rows of brilliant-cut diamonds18 karat white gold(16.17-carat Sapphire)
<em>Gübelin report, numbered 20031099, dated 24 March 2020, natural, indications of heating.
Gem report, dated 10 June 2005, Madagascar, no indications of heating. </em>