Antique / vintage cocktail ring. Retro era - circa late 1940's to 1950's. 18k white gold setting with aquamarine, sapphires and diamonds. 

US size 6.75. Weighs 12.5 grams. Aquamarine approx 10.39 cts; 24 marquise mixed cut sapphires - approx 4.00ct; 26 round brilliant cut diamonds approx 0.70cts.  

Large and vibrant cocktail ring. Gorgeous shades of blue with great flashes of light from the stones. A large emerald cut aquamarine in the center rises from a rectangle of diamonds, in turn surrounded by a background of marquise shaped deep blue sapphires. The latter like leaves in a ring - their dark colour wonderfully setting off the diamonds contrasting with the lighter aquamarine. Set in white gold. A stunning ring of great quality that will definately be an attention-grabber. 

The inside of the shank is marked 18k.  

Good condition. 

The ring is sizeable.