Vintage Aquamarine 18k Yellow Gold Cocktail RingThis 18k gold aquamarine ring is a striking example of the bold, architectural jewelry produced in the 1970s to early 1980s. At the center sits a large emerald cut aquamarine with natural internal characteristics, set in a smooth, substantial bezel that highlights the stones clear blue color. The wide, sculptural gold shank reflects the clean lines and modernist influences of the period, giving the ring a strong, confident presence on the hand. The