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 Clarity ?
P:  2/16/2003 2:31:59 PM  
Leanne
Leanne

Cut Rock
Total Posts: 122
Last Post: 7/22/2005
Member Since: 1/7/2003
 
I don't understand the clarity ratings. I've read that the clarity is first judged by looking at the stone from the top without a loupe. Then I've read that it is judged by looking under a scope. Which is it?

 




Some days a diamond, some days a stone
Posted:  2/16/2003 2:31:59 PM

 There are 2 replies to this message.  There are 2 replies on this page.
P: 2/16/2003 2:47:12 PM
oldminer
oldminer

Ideal Rock
Total Posts: 4,964
Last Post: 11/20/2009
Member Since: 9/4/2000
 
 		Use a loupe AND a microscope. Not really much is done with the naked eye.

David S. Atlas

GG(GIA), ASG, Sr. Mbr. NAJA

www.datlas.com
Posted:  2/16/2003 2:47:12 PM
P: 2/16/2003 2:49:33 PM
niceice
niceice

Ideal Rock
Total Posts: 1,792
Last Post: 7/22/2008
Member Since: 1/29/2003
 
 		The industry standard for grading diamond clarity is a 10x diamond grading loupe. The Gem Scope is essentially a hybrid of the 10x diamond grading loupe and enables the user to view the diamond or gem under a variety of higher magnifications with a controlled light source and a gripper which holds the diamond in a more stable position. The magnification of the gem scopes usually starts at 10x and goes up to 70x - the land where you can watch your blood cells move about on a glass slide, adaptors are available to increase magnification as much as 125 times. Diamonds are graded for clarity from "a crown view" which means that they are viewed from the top down, the crown encompassing the entire top section of the diamond. It is common for inclusions to be visible from the side view of a diamond without magnification, even in higher clarity grades.

Todd L. Gray, President
NiceIce.com
Posted:  2/16/2003 2:49:33 PM

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