



521
An Opal and Gem-set Ring
One rectangular cabochon opal, weighing approximatley 17.20 caratsRing gallery and shank set with numerous circular-cut fancy coloured sapphires, rubies and tsavorite garnets18 karat blackened gold(17.20-carat Opal)
<em>GIA report, numbered 5336519912, dated 26 August 2019, natural. </em>