18K金镶嵌3.93克拉椭圆形缅甸红宝石,周围配以珍珠贝母及钻石点缀,戒指6号,附GIA及GRS证书 证书
GIA, 2014, report no.1177680426:"3.93" carats, Burma, no indications of heating
GRS, 2010, report no.GRS2010-072019-8:"3.93" carats, Burma, no indications of thermal treatment
Please note that the reports are more than 5 years old
and might require an update