Giant Australian White Opal 4.75ct with natural diamonds setting platinum PT900 ring with certificate US6.5

Materials: Platinum
Gemstone: Opal

with Japanese certificate
measurement 18.6*17.8ct, thickness 10.9ct
weight 11g
imported from Japan
natural white opal 4.75ct , diamonds 0.66ct
US size 6.5
perfect as evening ring, as elegant as it can be..
Include beautiful jewelry box. Perfect for gift