When fire meets ice, brilliance is born. Every facet tells a story. Every cut makes an impression. Every angle reveals the fire within. Fire & Ice Diamonds are the result of extensive research conducted by the Gemological Institute of America (GIA) and the American Gem Society (AGS) concerning the behavior of light in a diamond. Building on this new understanding of the science of light return, Fire & Ice Diamonds are cut to maximize radiant light and sparkle emerging from the top of the gem.