Vintage/Estate 18K White Gold Sapphire Cluster/Halo Ring with Diamonds

An estate modern, important oval-cut "cornflower" sapphire and round brilliant-cut diamond domed-style flower ring set in 18k white gold. Circa 2000.

Vintage & Estate Collection
1 oval-cut sapphire: 6.21 total carat weight
AGL: 1094730 , Origin: Ceylon (Sri Lanka) , Treatment: Heat Only
*Important due to cornflower color of sapphire*
143 round brilliant-cut diamonds: 1.15 total carat weight
G-H color, VS2-SI1 clarity
Size: 6.50 - alterable