Diamond gold ring set with Burma sapphire approx. 3.70 ct.

18k white gold, set with sapphire surrounded by diamonds.
N. 01 blue sapphire, oval shape, mixed cut, approx. 3.70 ct.
Origin Myanmar (formerly Burma). No evidence of thermal enhancment).
N. 28 diamonds, rectangular and trapezoidal shape, step cut, approx. 2.40 ct; G; IF-VVS.
Hallmarked "750". IT size 18 - US size 8 1/2. Weight 7.4 g.
Item condition grading: ***** excellent. Accompanied by Istituto Gemmologico Nazionale jewelry report.