Hearts on Fire hand selects only high-quality, transparent, and knot-free natural diamond crystals. A blend of art and science, the Hearts On Fire cut is designed to let in as much light as possible for an exceptional sparkle that's impossible to miss. Hearts on Fire's proprietary cutting formula highlights a diamond's physical properties—like the way it reflects and refracts light—and emphasizes its inherent beauty with precise angles that show it off to its most magnificent effect. Hearts On Fire cuts every one of its unique diamonds at 100 magnification. They use a special damping system licensed from Rolls Royce. Their diamonds are cut to tolerances beyond the capability of ordinary diamond scathes. Most diamonds are cut by hand; Hearts On Fire cutters use a mix of traditional hand craftsmanship amplified by exacting computers. Once a diamond crysal is rounded, a single cutter is responsible for the entire process rather than just mass producing with different people at each stage of the process. Hearts On Fire diamonds are guaranteed conflict-free, from point of origin to final piece. They travel to the ends of the earth to find the most beautiful diamonds on the market and source them responsibly and ethically from South Africa, Botswana, Namibia, Angola, Russia, and Canada. Their diamonds are 100% in compliance with the Kimberley Process.