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Hearts & Arrows Grading The Hearts
Diamond Parts
Cutting Process
Hearts Formation
Arrow Effect
Grading Hearts
Grading Arrows
Visual Appearance
Phony H&A
Machinery
Conclusion
 
Diamond tutorial
Quick Guide
  • 8 equal uniformed symmetrical hearts.
  • 8 distinct symmetrical Hearts that separate from the Arrowheads above. If above is correct check the following.
  • Check if the hearts are split, measure length of heart then the length of the split.
  • Calculate the % of the length split, if it is greater than 8% and there are more than 2 of them IT FAILS.

In Detail and picture essay
  1. First check to have 8 equal hearts and arrow heads.
     
    They must be equal in size and shape as seen in the picture "True Hearts" Below you are shown a true set which are acceptable and a set Where the hearts are not quiet equal in size, but more importantly the hearts split in the cleft. This is a NO NO! (Not formed correctly this is the most difficult case of all to determine if it is correct or not)
     

     
    In A1, A2 and A3 the heart is well defined the gap between the Arrowheads is distinct and clear and the split at A3 is minimal versus F1, F2 and especially F3 where this is the case
     
  2. Calculating the accuracy and Hearts you can measure the length as shown X_to_Y in 1a (A template tool can be used) say this is 10mm.Iif you see any splits in the cleft this is measured and it can be no longer than 8% of the total length of the heart as shown by Z to C in 2A if there are more than2 hearts split at more than 8% then it will not make the grade True Hearts, in addition the arrow head must separate from the actual Heart



WHAT HEARTS SHOULD NOT LOOK LIKE

Here are examples of hearts that do not make it and are easy to determine. Simply because they are not equal and homogenous and the arrowhead and hearts blend together in some cases.
 

 
Here is a picture of an AGS0 cut AGS3706305 note that the hearts are splitting we can call them Variable V’s, also the Arrows heads and shafts are needle like and not straight and are broken up.
 

 
Checklist
  • 8 equal uniformed symmetrical hearts.
  • 8 equal uniformed symmetrical distinct hearts that separate from the Arrowheads above. If above criteria is correct then check the following.
  • Check if the hearts are split, measure length of heart then the length of the split.
  • Calculate the % of the length split, if it is greater than 8% and there are more than 2 of them IT FAILS.

This can be done visually once a standard of proficiency has been attained.
 
Grading The Arrows »
  


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