Overview
The HCA is a computer algorithm that predicts light performance of a diamond based on several measurements. It is a useful tool for rejection, but should not be thought of as absolute. The best use of HCA is to enter measurements and see if it identifies that diamond as an excellent or very good performer.
The actual number is meaningless. For a minute let’s pretend that Sarin measurements are completely accurate. Even so, HCA does not take into account minor facets, which play a prominent role in the character of diamond beauty. Facet yaw influences character and performance, but is not a part of the HCA prediction. Details of patterning and total facet symbiosis influence performance through a broad range of illumination environments in diamonds but these are not factored into HCA either.
HCA provides a yes or no. It places a diamond in or out of the top 5%. Any further discussion regarding character is best done with an expert who has the actual diamond in-hand.
Scripts - Explanation
“The HCA gives a yes or no answer. Once the diamond is under 2.0 the exact number doesn’t matter. It tells you that on the results page, but it’s in the fine print.”
“Think of it this way: You are the king. The HCA is your taster. After HCA determines the foods that are not poisoned you can start deciding which dish is your favorite. It doesn’t tell you any more than that.”
“If the diamond scores 2.0 or less it means that it’s in the top 5% of all diamonds. Remember that the HCA can’t see all of the minor facets. It can’t tell how good the patterning is in a diamond. It gives you a broad outline of the cut, but how well the diamond is actually made is something it can’t see.”
“A Whiteflash A CUT ABOVE diamond will always be even better than HCA predicts because of our Hearts & Arrows patterning.”
For more specific questions ask our experts
