White Gold, Blue Topaz, and Diamond Ring

Centered on a cushion cut blue topaz (15.50 x 15.30 x 9.79 mm) weighing approximately 15.75 carats set within a double halo of full cut round diamonds weighing approximately 1.00 total carat (G-H color, SI1-SI2 clarity), on a wide tapering shank, testing 18KT.

21.88mm; Ring size 10.5

13.0 dwt.

Topaz displays a greenish blue hue, medium tone, and strong saturation.

Good estate condition; three diamonds with significant chips and topaz with minute nicks and abrasions, all visible under 10x magnification.