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HCA vs Idealscope

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DoctorZ

Rough_Rock
Joined
Jun 22, 2003
Messages
63
Does the HCA correlate exactly with the Ideal-scope? So far, I have seen four diamonds with the Ideal-Scope and they all seem to correlate with the performance numbers from the HCA. Has anyone found this to be otherwise???
 

DoctorZ

Rough_Rock
Joined
Jun 22, 2003
Messages
63
Also, regarding the calibration CZ stone that comes with the Ideal-Scope kit... how well would it score on the HCA?
 

caratgirl

Brilliant_Rock
Joined
Jan 1, 2003
Messages
634
My diamond's 1.2 HCA correlated with the Idealscope very cool light return, and also confirmed that my previous diamond was not as good. Also my earrings that I have had for 15 years performed great, and they always seemed to sparkle a lot more than the average.
 

caratgirl

Brilliant_Rock
Joined
Jan 1, 2003
Messages
634
By the way, the calibration CZ that I got pretty much didn't look as good.
I think I just got a dud, so make sure that you compare the picture that you get to the actual look of the CZ before deciding that a good diamond should look that way! I looked at about 20 stones before I got a good feel for how a great diamond should look.
 

Garry H (Cut Nut)

Super_Ideal_Rock
Trade
Joined
Aug 15, 2000
Messages
15,306
I hope your cZ was not a dud - we try to QC them and they are the best commercially available stones we can buy.

There is a correlation between the 2 systems because I used the ideal-scope as a part of the HCA system.
All the workings etc are explained very fully in www.diamond-cut.com.au so there are absolutely no secrets.
 
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