Hearts and Arrows of a Diamond – The Super Ideal Cut


A visual phenomenon that occurred in diamonds was called the “Cupid effect,” and these diamonds later were traded as “hearts and arrows.” According to both Roman and Greek mythology, a person shot with Cupid’s arrow supposedly fell in love, thus making it clear the link between the ‘hearts and arrows’ and love.



Hearts and Arrows Viewer [Image Courtesy: IGI, Diamond Import]
Hearts and Arrows Viewer [Image Courtesy: IGI, Diamond Import]


In a Hearts and Arrows Diamond, one can view 8 symmetrical Arrows in the face up position (‘Crown’) and 8 symmetrical Hearts when viewed in the table down position (‘Pavilion’). This can be viewed with the help of a Hearts and Arrows Viewer, which is a tool that reflects optical symmetry.



Hearts & Arrows Diamond [Image Courtesy: Diamancia]
Hearts & Arrows Diamond [Image Courtesy: Diamancia]
Cut is one of the major deciding factors to judge how good a diamond is. It’s easy for a diamond to scintillate under the bright light arrangement of a jewellery store, but very few have the unique combination of precise cut, shape, and angles to hold the same brilliance in more natural lighting situations.

It is a myth that any diamond with a Triple excellent cut can be categorized as a ‘Hearts and Arrows’ diamond. The truth is there are a number of parameters that a diamond has to fulfil in order to qualify as a Hearts and Arrows diamond.


Hearts and Arrows Diamond [Image Courtesy: Bentley Collections]
Hearts and Arrows Diamond [Image Courtesy: Bentley Collections]
These diamonds signify highest/ ultimate level of precision that a diamond can achieve. Every facet is placed at exact angles to create an ideal balance between optimum brilliance and the scattering of light (optimum reflection and refraction) i.e. return of light to the eye (the prism effect plays an important role here).

Buyers can easily recognize the alluring brilliance of a Hearts and Arrows Diamond which is so extraordinary, that it’s not necessary to buy the highest grade of diamond to have a glittering stone on finger!


A lesser known fact is that not just the cut but also the polish matters equally in the making of a Hearts and Arrows diamond. Thus, to achieve this diamond with quintessential beauty, the cutter often has to sacrifice on the valuable carat weight of the stone.

Premiums are charged on sales of Hearts and Arrows diamonds. Thus, it is in the best interest of the buyer to be well informed about them and get their facts straight.

Five main components help define a “Hearts and Arrows” super-ideal cut diamond, which include a diamond’s:

  1. Pavilion angle range: 40.2° – 41.2° (40.6° – 40.8° is optimum)
  2. Crown angle range: 33.4° – 36.4° (34° – 35° is optimum)
  3. Table size range: 53% To 58% (54%-57% is optimum)
  4. Lower girdle halves length range: 75% To 80% (77% is optimum)
  5. Star facets length range: 40% To 58% (45%-50% is optimum)


Hearts and Arrows Diamond
Snapshot of Youtube video [Image Courtesy: Whiteflash, Youtube]

IGI and HRD grade Hearts and Arrows optimal cut, and IGI have a specific certificate. GIA does not grade Hearts and Arrows cut, although its certificates will sometimes contain a note stating “Laser Inscription: H&A”. When a GIA certificate has a such a note, it simply indicates that “H&A” was laser inscribed on the diamond before it was graded by GIA. Neither the “H&A” laser inscription nor the note on the GIA certificate is an authentication that GIA observed hearts and arrows patterns on the diamond.

The diamond industry is still not that technologically established so as to come up with a firm criteria for evaluating stones on this level. Thus for consumers wanting to purchase a Hearts and Arrows diamond it is best and safest to review hearts and arrows images under a Hearts and Arrows Viewer, in person.



  1. Very informative. Apart from Hearts & Arrows, can you tell which other Diamond cuts are the most popular/ one should look for?

    • Basically the following proportions range will give you a sparkling round brilliant diamond
      Pavillion Angle : 40.4º to 41.3º
      Crown Angle : 33.8º to 36º
      Table size : 54% – 60%
      Polish : should be Ideal or Excellent as it will reflect to the symmetry of the facets.
      Also check for fluorescence as it is a flaw and your diamond shows up white in blue light, some people like it but i dont and it decreases the diamond’s value depending the severity of the fluorescence.

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