An Exquisite Antique Aquamarine Blue Spinel Diamond Ring, Vintage Art Deco in 18K Gold, circa 1930's. This wonderful original antique Art Deco ring holds a sparkling bright, aquamarine blue spinel at its center measuring about 8x10mm in an emerald cut. The center stone is joined by four antique rose cut diamonds. The setting is a wonderful example of the Art Deco period with ornate, handmade detailing that is composed of 18K gold. Overall the ring measures about 5/8 inch long by about 3/4 inch wide from side to side. Ring Size: about 7 1/2 (could be resized by your jeweler or ask me about using mine before shipping). A truly wonderful example of the Art Deco period.