Magnificent natural aquamarine and diamond period art deco ring. The center aquamarine measures 16.50x13.20x8.10mm and weighs approximately 12.00cts. The stone has excellent clarity and pale blue color There are two single cut diamonds on either side of the aquamarine weighing approximately .04cts each totaling .16cts and are collection quality. The mounting is in 18k Rose Gold circa. 1940.