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Article: Hearts and arrows

Hearts and arrows

Hearts and Arrows Diamonds

  • Hearts and arrows diamonds originated in Japan in the mid-1980s.
  • They are cut to ideal proportions based on Marcel Tolkowsky's book 'Diamond Design.'
  • Less than 1% of the world's diamonds are cut to hearts and arrows optical symmetry precision.
  • This cut requires additional polishing and results in more waste of the original rough diamond material.
  • Hearts and arrows diamonds are more expensive than average cut diamonds.

Hearts and Arrows Viewer

  • A hearts and arrows scope is used to see the hearts and arrows pattern in a diamond.
  • The scope analyzes the physical symmetry, contrast, and alignment of facets.
  • It allows viewing the diamond from both the top (crown) and bottom (pavilion) to reflect light from specific facets and angles.
  • The viewer uses white and colored light at set angles to catch and reflect light.
  • The hearts and arrows pattern can be observed through the viewer.

Certification and Scientific Research

  • In the early 1990s, hearts and arrows cutting was uncommon in America.
  • The Gemological Institute of America identified key characteristics of hearts and arrows diamonds.
  • HRD, IGI, and WTOCD are laboratories that certify hearts and arrows diamonds.
  • HRD developed proprietary software to analyze the images according to H&A guidelines.
  • Hearts and arrows diamonds command a price premium due to their better overall cut quality.


  • There is disagreement in the diamond industry regarding which diamonds should receive the hearts and arrows label.
  • The term 'super ideal' is often used to describe diamonds with perfect optical symmetry.
  • Most diamonds with an Excellent cut grade will display some hearts and arrows pattern.
  • Some believe that only diamonds with a perfect hearts and arrows pattern should be called hearts and arrows.
  • Specific guidelines define the components of a hearts and arrows super-ideal cut diamond.


  • Morse, Tolkowsky, Higuchi, and others have contributed to the development of hearts and arrows diamonds.
  • The DNA of hearts and arrows diamonds can be explored.
  • The website provides information on hearts and arrows diamonds.
  • The H&A Viewer is a tool used to examine hearts and arrows diamonds.
  • Additional references and resources can be found for further study.

Hearts and arrows Data Sources

Reference URL
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