Art Deco ring in white gold, platinum, diamonds and sapphires

Art Deco engagement ring in 18Kt white gold and platinum (hallmarks: eagle head and dog) set in its center with an old-fashioned cut diamond weighing approximately 0.15 Ct (Estimated color H, and estimated purity SI2) , in an entourage of old-fashioned and half-cut diamonds (total weight estimated at approximately 0.60 Ct), and baguette-cut synthetic sapphires. French work, circa 1935, Art Deco. Gross weight: 4.23g Pattern height: 1.20 cm Pattern width: 1.80 cm Finger size: 56 (diameter 17.75/US 7.50). Condition: very slight micro scratches on the gold and platinum parts, slight wear on the setting, and slight abrasion on the stones, see photos.