Fire & Ice Diamonds are the result of years of research conducted by the Gemological Institute of America and the American Gem Society. These exquisite, high-end diamonds are cut to precise angles to maximize the radiant light and sparkle emerging from the top of the gem. Bigger, brighter and whiter – even compared to other Excellent and Ideal cuts – every Fire & Ice Diamond reaches the highest standard for cut, proportions, symmetry, and light return.