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 HCA Question...

P:  10/28/2003 9:14:50 PM  
Nobel
Nobel

Rough Rock
Total Posts: 9
Last Post: 12/5/2003
Member Since: 10/28/2003
 
Hey y'all. Can anyone tell me what's the real world difference between an HCA rating of 2.5 and .9? Is this something that's easily noticeable to the average person? With thanks in advance!

 


Posted:  10/28/2003 9:14:50 PM

 There are 3 replies to this message.  There are 3 replies on this page.

P: 10/28/2003 11:59:55 PM
Mara
Mara

Ideal Rock
Total Posts: 27,919
Last Post: 11/23/2009
Member Since: 10/30/2002
 
Hi Nobel. Well you will get varying reactions from people on this question. In my opinion, there would be a visual difference between one that is .9 and one that is 2.5. I would most likely go for the one that is .9 unless it was exhorbitantly more pricey or similar. If there wasn't a difference at all between something that was under 1 and something that was over 2...why would there even BE a differentiation between stones under 2.0 (excellent) and stones above? Obviously there is a difference between 1 and 2 and 2.5 and 3...thats why the HCA is setup that way.
 
Maybe that is too cut and dry when really diamonds and visual beauty are a preference (it is)...but that is how I view it. When comparing you need to look at all things. What does the 2.5 stone have that leads you to even ask this question? If they were entirely similar in everything else (e.g. ctw, price, color, clarity) then you would take the .9 hands down. So is the 2.5 bigger or cheaper or ?
 
Sorry to ramble...I think there is a difference, it may not be night and day...but it will be the difference between a stone that really lights up the room and one that merely winks a little from across a room.
 
Post more data on the stones you are comparing and people will give you their two cents...if you want it.
 
Good luck!!

________________________________

"Insanity: doing the same thing over and over again and expecting different results."

-Albert Einstein

Posted:  10/28/2003 11:59:55 PM
P: 10/29/2003 12:12:35 AM
Garry H (Cut Nut)
Garry H (Cut Nut)

Ideal Rock
Total Posts: 11,579
Last Post: 11/23/2009
Member Since: 8/16/2000
 
I think 80% of people would prefer a .9 over a 2.5 when the stones were seen side by side.

Garry Holloway FGAA DipDT

HCA and Ideal-scope developer

http://www.ideal-scope.com and
http://www.HollowayDiamonds.com.au

Posted:  10/29/2003 12:12:35 AM
P: 10/29/2003 2:08:15 PM
Nobel
Nobel

Rough Rock
Total Posts: 9
Last Post: 12/5/2003
Member Since: 10/28/2003
 
Mara, yes there are other reasons. Namely, the HCA 2.5 is slightly smaller and approximately 5% cheaper. Plus, using Atlas' ratings, the crown angle is rated slightly lower (1B) on the .9 rated HCA stone versus a score of 1A on the HCA 2.5 stone (every other measurement being the same).

Posted:  10/29/2003 2:08:15 PM

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