Ring Engagement You and Me Ruby and diamonds on Yellow Gold

Ring "Toi et Moi" engagement set in yellow gold 18Kt and paltinium (hallmarks: owl), adorned at its center with two oval rubies weighing a total of approx. 2.30 Cts (1.30 Cts and 1.00 Ct), within a shoulder of diamonds brilliant-cut rubies, weighing a total of approx. 0.55Ct (estimated color G to H, estimated clarity VS to SI). Ruby accompanied by a Carat Gem Lab certificate, specifying natural Burmese rubies with thermal modifications. French work, vintage. Unidentified hallmark. Gross weight: 6.50g Size: 57 (diameter 18.10/ US 8.00). Height: 1.00cm Condition: slight micro-scratches and oxidation on the gold parts, and very slight abrasion on the stones, see photos.