| Author | Topic: Difference between thin & med girdle |
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glenn925 rough rock Posts: 7 |
posted 12-18-2000 12:13 PM
I have found a diamond that rated a 1.8 in the cut advisor...But the rating is based on a vg polish and med girdle,,,The diamond I am interested in has a thin girdle,,,but an exc polish & sym!!! It is an H&A diamond...Should I worry about it having a thin girdle?? |
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leonid Administrator Posts: 236 |
posted 12-18-2000 12:32 PM
Hi Glenn, Thin girdle is not affecting beauty of the diamond. Tolkowsky described his ideal diamond with Extremely Thin - Knife Edge girdle. AGS ideal proportions allow Thin to Slightly Thick girdles. The only problem with a thin girdle is a higher chance to chip it. As for better polish and symmetry, it shouldn't hurt you at all [This message has been edited by leonid (edited 12-18-2000).] |
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oldminer cut rock Posts: 30 |
posted 12-18-2000 12:33 PM
In an otherwise proplery cut stone, the thin girdle will have little adverse effect on durability and will have no effect on appearance. A thin girdle combined with a shallow crown angle contributes to a decrease in durability allowing girdle chipping and larger breakage to more readily occur. ------------------ |
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leonid Administrator Posts: 236 |
posted 12-18-2000 12:43 PM
Thank you, Oldminer. If I'd know that you are around, I'd better shut up. Thanks so much for your help |
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glenn925 rough rock Posts: 7 |
posted 12-18-2000 12:51 PM
WOW,,,you guys are FASSSSTTTTTTT!!!! Thank you!!!!! |
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leonid Administrator Posts: 236 |
posted 12-18-2000 02:08 PM
Glenn, You're welcome! Hope we help |
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davidt rough rock Posts: 7 |
posted 01-27-2001 09:31 AM
a thin girdle is virtually NO DIFFERENT than a medium. it is no more or less appealing,has NO effect on the beauty or brillance, and is absolutley NOT more likely to chip more than a medium, AND it is quite unlikely that even well experienced diamond appraiser could look at a diamond girdle and be certain whether the GIA would call it a thin girdle or a medium....THE DIFFERENCE is EXTREMELY microscopic. but for those who are enthralled with such minutia, a THIN girdle is generally prefered, similarly to a very small or no culet being prefered. |
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davidt rough rock Posts: 7 |
posted 01-27-2001 09:32 AM
a thin girdle is virtually NO DIFFERENT than a medium. it is no more or less appealing,has NO effect on the beauty or brillance, and is absolutley NOT more likely to chip more than a medium, AND it is quite unlikely that even well experienced diamond appraiser could look at a diamond girdle and be certain whether the GIA would call it a thin girdle or a medium....THE DIFFERENCE is EXTREMELY microscopic. but for those who are enthralled with such minutia, a THIN girdle is generally prefered, similarly to a very small or no culet being prefered. |
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davidt rough rock Posts: 7 |
posted 01-27-2001 09:33 AM
a thin girdle is virtually NO DIFFERENT than a medium. it is no more or less appealing,has NO effect on the beauty or brillance, and is absolutley NOT more likely to chip more than a medium, AND it is quite unlikely that even well experienced diamond appraiser could look at a diamond girdle and be certain whether the GIA would call it a thin girdle or a medium....THE DIFFERENCE is EXTREMELY microscopic. but for those who are enthralled with such minutia, a THIN girdle is generally prefered, similarly to a very small or no culet being prefered. |
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lawmax cut rock Posts: 133 |
posted 01-27-2001 09:42 AM
What I've read most is that Very thin to Extremely thin girdles are to be avoided in fear of chipping during setting or daily wear. It seems reasonable to me-diamonds are expensive and there are so many out there (in general). I would prefer to err on the side of safety. lawmax |
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Cut Nut cut rock Posts: 31 |
posted 01-29-2001 07:15 AM
A thin girdle gives max spread and reasonable protection against chipping. Very thick girdles have little impact on beauty - but a big impact on spread because there is additional weight at the thickest part of the stone. Garry |
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leonid Administrator Posts: 236 |
posted 01-29-2001 09:47 AM
Here is a good reference for the girdle thickness: www.gis.net/~adamas/cut.html |
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lawmax cut rock Posts: 133 |
posted 01-29-2001 10:19 AM
Good link Leonid-that information is not so easy to find. |
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