We polish our diamonds at 100X magnification for a precise and consistent cut that allows them to sparkle to their fullest potential with maximum light return.Our process is so rigorous that it takes longer to cut a Hearts On Fire diamond than it would take to cut a generic diamond.The first measure of a diamond’s sparkle is brilliance, or how well it reflects white light. When you see a diamond sparkling in a dimly lit or candlelit room, what you’re seeing is its brilliance. If a diamond isn’t cut correctly, it will appear dim and dull, even in perfect lighting.