“Embrace Perfection” A diamond’s cut, more than any other factor determines how brilliantly it will shine. As The World’s Most Perfectly Cut Diamond® every Hearts On Fire shines like no other. Only a select group of artisans world-wide have mastered the skills necessary to cut diamonds to the superlative standards set by Hearts On Fire. Proprietary technology enables these craftsmen to perfectly position, hand-polish and analyze each facet at 100X magnification – 10 times the international and industry requirements.