French, Burma ruby and diamond ring

Set with an oval-cut ruby weighing approx. 1.58 cts, in a geometric mount of baguette and round brilliant-cut diamonds
Platinum and 18k yellow gold
Ring size 6; Gross weight 3.7 dwts
GIA Report no. 2215859688, July 06, 2021, Natural Corundum, Natural Ruby, 7.19 x 6.57 x 3.50mm, Burma (Myanmar), No Heat.
AGL Report no. 1119606, 12/15/2021, 1.58 cts., Natural Corundum Ruby, Burma (Myanmar), No Heat.

Condition: Overall good condition. Ruby weighs approx. 1.58 cts TW, GIA. Diamonds: 28 approx. 1.35 ct TW by measurement. The diamonds are bright and lively. With French assay marks.