A Vintage Solid Gold Ring set with Tanzanites and Diamonds

A Vintage Solid European Gold Ring set with three Tanzanites and two Diamonds. Clearly Hallmarked 375 within a cluster of other marks, possibly British. Excellent Colour to the Tanzanites and the Diamonds add that extra sparkle to the setting. All in excellent condition with no damage or losses. Dimensions approx.: Ring Size P 1/2  or  7 ¾ ; Band width 2mm at Diamond Shoulders, tapering to 0.15cm at rear; Band thickness 0.2cm at divided shoulders tapering to 1mm at rear; 3 Tanzanite each 0.3cm dia. x 0.2cm deep TCW 0.33ct total, 4 Diamonds nominal 1 pt. each. Europe