The World’s Most Perfectly Cut Diamond®.

Diamond Cut

Diamond cut is the single most important of the 4Cs when it comes to beauty and sparkle. Cutting grade alone can determine 50% of the diamond’s value. Hearts On Fire uses a proprietary cut that consistently produces diamonds that sparkle better and brighter unlike any other. Hearts On Fire diamonds are cut with impeccable attention to detail every time, returning as much light as possible for a bright, unmistakably brilliant sparkle. Diamonds are cut at 100X power magnification (unlike the industry standard of 10X).


Hearts on Fire hand select the most beautiful diamonds on earth, choosing only rough diamond crystals that are internally clear and knot-free. By using only the most exceptional rough diamond crystals, our cut and polished gemstones have a clean, brilliant, and unmistakable sparkle in their finished form.


Cut is everything when it comes to a diamond’s sparkle, beauty, and overall value. Heart on Fire's cutting process is a blend of art and science, perfected over many decades by our master diamond cutters. Heart on Fire's cut 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.  


Heart on Fire cut and polish their diamonds at 100X magnification. That’s 10 times the industry standard, and that kind of precision makes a difference that you can see. It’s one of the reasons why HOF diamonds sparkle so much more than other diamonds.


Every single one of Heart on Fire's diamonds, even the tiniest accent diamonds, has the signature Hearts & Fireburst pattern. This pattern is a result of the HOF cut, and a testament to its consistency. It is Heart on Fire's promise that every diamond in a piece of Hearts On Fire jewelry will sparkle with their signature brilliance.




Hearts On Fire sources optically pure rough diamond crystals with exemplary clarity.

At Hearts On Fire, octahedral or double pyramid diamond crystals are our preferred rough source. These rough diamond crystals are internally pure, meaning they are clear or nearly clear when they emerge from the ground. Octahedral rough diamond crystals are rare, and form only in high temperature and pressure conditions, so they are more difficult to source than diamonds with more visible inclusions, like crystals and debris that got trapped during formation. 

You never have to worry about seeing any major inclusions in Hearts On Fire diamonds—our diamonds consistently get American Gem Society (AGS) clarity ratings ranging from Flawless (absolutely no inclusions) to Slightly Included (slight characteristics that can only be seen under 10X magnification, and are generally not visible to the naked eye). See our Diamond Clarity Chart for more information.


Hearts On Fire sources only colorless and near-colorless rough diamond crystals, ensuring a clean, brilliant sparkle every single time.


Diamond carat is the measurement of the diamond’s weight—not its size. Though diamond carat weight is the factor which most affects the price of a larger diamond, cut is the factor that determines how much sparkle and outward beauty it will have. It’s important to keep in mind that carat refers only to a diamond’s weight, and not necessarily to its size. Even if two diamonds have the same carat weight, the cut of the diamond will affect how large the diamond appears, and how much sparkle it emits. That’s why Hearts On Fire diamonds are cut for beauty and consistency, and never for size alone.

We proudly offer Hearts on Fire serialized diamonds.
For more information on the availability, please contact us here.