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 » RockyTalky
»  » AGS Clarity Charts?
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AGS Clarity Charts? |
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| P: 6/1/2003 4:55:25 PM | |
JohnWild Rough Rock Total Posts: 10 Last Post: 6/20/2003 Member Since: 5/8/2003 |
On diamonds that have an AGS certification, I have seen lots of diamonds with VS2 clarity grade that show lots of inclusions and comments saying "additional clouds not shown", yet have seen SI1 clarity graded diamonds with less "marks" on the diagram of the diamond, and no additional comments at all. Is this simply a case of one certification might have been more lenient than another, or is there something else that could make a diamond fall into an SI1 category that wouldn't necessarily be noted in the comments section or the diagram of inclusions on an AGS Cert. Just curious because I have been concentrating on VS2 clarity diamonds, but the answer to this question might make me look more closely at some that fall into the SI1 category. Thanks! John Wild |
| Posted: 6/1/2003 4:55:25 PM | |
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There are 3 replies to this message. There are 3 replies on this page. |
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| P: 6/1/2003 5:27:51 PM | |
barry Cut Rock Total Posts: 440 Last Post: 12/1/2003 Member Since: 3/22/2001 |
John; You bring up a very good point. It is very difficult to determine an inclusion(s) exact location, color, size, and depth solely from the plot. The difference between VS-2 and SI-1 can be a matter of an inclusion(s) size and location. In this regard it is beneficial to go with either a GIA or AGS report as they maintain a consistency in clarity and color grading that is unequalled with the exception of HRD. No doubt the clarity/color grading by these Labs carries an element and degree of subjectivity as does any object of human behavior. In the case of GIA, this is mitigated and controlled by having the submitted report of the Grader reviewed by a second grader and in the case of borderline color and/or clarity grades reviewed and evaluated by a third (Supervisor). I'm sure AGS has similar controls in place. There is no question that there are SI-1 and SI-2's that are visually eye-clean and better than VS-2's. Again, it is a matter of size, color, and location of the inclusion(s). If you're shopping in a B&M, of course compare several VS/SI clarities. if you're shopping over the Internet, have your vendor eyeball and describe the diamond to you as well as provide you with detailed digital photo's highlighting the inclusions. Once you examine these photos and compare them to the GIA or AGS plots, you'll see why it is so difficult to make a proper interpretation just off the plot alone. Barry www.superbcert.com
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| Posted: 6/1/2003 5:27:51 PM | |
| P: 6/2/2003 8:52:38 AM | |
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JohnWild Rough Rock Total Posts: 10 Last Post: 6/20/2003 Member Since: 5/8/2003 |
Thanks for your feedback Barry!
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| Posted: 6/2/2003 8:52:38 AM | |
| P: 6/2/2003 9:41:44 AM | |
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barry Cut Rock Total Posts: 440 Last Post: 12/1/2003 Member Since: 3/22/2001 |
You're very welcome. Best of Luck. Barry www.superbcert.com
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| Posted: 6/2/2003 9:41:44 AM | |
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