Art Deco style tsavorite and diamond ring

Ring in 750 (18k) white gold centered with a brilliant-cut diamond in a beaded bezel setting in a star-shaped surround of 12 calibrated tsavorite garnets enhanced with 18 brilliant-cut diamonds (for approximately 0.18 ct) and supported by 20 brilliant-cut diamonds in paving (40 to total), Art Deco style, contemporary manufacturing, owl hallmark 75, Diafini 750 brand (for 18k gold) Gross weight: 5.52 g Weight of the central diamond: approximately 0.46 ct (5 mm / 2.9 mm) Finger size: 53 Condition: very good general condition ref.416