Help me with her girdle

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On 9/1/2003 121:51 AM Thegroom wrote:


I'm looking at a particular stone but am having trouble finding much about girdles and what I should look for or what is considered okay. The GIA rates the stone's girdle as medium to thick/faceted, and AGS measurements show it as 1.9-2.9%. First, is this range between the maximum and minimum in the girdle significant? Second, since the girdle is on the thicker side, does this effect the diamonds appearance or value? Other than that, the diamond rates a 1.1 on the Halloway Cut Advisor with the following info:

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On 9/1/2003 8:30:59 PM niceice wrote:

Actually, the girdle measurement reference here is "slightly thick to thick" and usually IS the result of the cutter trying to retain weight during the cutting process. That said, the critical pavilion angle is at 40.8 degrees which is right within the range where you want it to be (40.6 - 40.9 degrees) and thus the diamond is probably quite pretty, but you're going to have a pretty noticeable girdle which is likely to look pretty thick from a side profile.
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On 9/1/2003 11:57:47 PM Mikesgirl wrote:

Hi. Go to www.gemappraisers.com and check out David Atlas's charts. His AGA grading system is more selective than AGS, and his 1A and 1B grade shows a girdle of 1.7 to 3, I believe. This is considered medium and optimal, by his very highly respected standards. Supposedly only 2 to 5% of all cut stones meet his exacting standards for 1A and 1B cuts. I've been looking at a stone with a .9 to 1.7 girdle and the description by the vendor is thin to medium. I have been told by others on this site that it is accurate.
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