10 Carat Emerald Cut Diamond Three Stone Ring. One of the most beautiful emerald cut diamonds you will ever see. This 10 carat beauty is amazing because of it’s unique cut- the “Cadillac”. With a ratio of over 4-1, this emerald cut has a tall slender look. The center is flanked by two matching step-cut trapezoid diamonds. This ring was created in platinum by our in-house master jeweler.