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»  » Diamond Prices and Grading »
 » RockyTalky
»  » Girdle % thin or thick
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Girdle % thin or thick |
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| P: 3/8/2002 4:29:56 PM | |
larry Rough Rock Total Posts: 85 Last Post: 11/21/2002 Member Since: 3/7/2002 |
I am looking at a diamond with a girdle of 1.5-2.7 can anyone tell what it coresponds to in thickness? Is this diamond woth considering? Thanks
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| Posted: 3/8/2002 4:29:56 PM | |
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There are 11 replies to this message. There are 11 replies on this page. |
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| P: 3/8/2002 5:52:35 PM | |
lawmax Ideal Rock Total Posts: 1,260 Last Post: 3/8/2009 Member Since: 1/1/2000 |
I'm guessing medium to thick or more. Hopefully, someone more knowledgable will come along or I'll find the answer for you. :)
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| Posted: 3/8/2002 5:52:35 PM | |
| P: 3/8/2002 5:59:21 PM | |
Pricescope Administrator Total Posts: 8,265 Last Post: 1/5/2008 Member Since: 1/1/2000 |
Different labs use different systems for girdle: If it is 1.5-2.7% in AGS certificate then it's slightly thing girdle. GIA Extremely thin 0.00 - 0.08 mm Very thin 0.08 - 0.12 mm Thin 0.12 - 0.15 mm Medium 0.15 - 0.20 mm Slightly thick 0.20 - 0.23 mm Thick 0.23 - 0.33 mm Very thick 0.33 - 0.40 mm Extremely Thick: greater than 0.40 millimeters AGS Very thin 0.091 - 0.50% Thin 0.51 - 1.2% Medium 1.21 - 1.7% Slightly thick 1.71 - 2.95% Thick 2.96 - 4.2% Very thick 4.21 - 5.7% Extremely Thick: >= 5.71 % HRD Ex.Thin 0.0 - 0.5% Very Thin 0.5 - 1.5% Thin 1.5 - 2.5% Medium 2.5 - 4.5% Sl.Thick 4.5 - 6.0% Thick 6.0 - 7.5% Very Thick 7.5 - 8.0% Ex. Thick 8.0 - 100% Pricescope |
| Posted: 3/8/2002 5:59:21 PM | |
| P: 3/8/2002 6:05:39 PM | |
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lawmax Ideal Rock Total Posts: 1,260 Last Post: 3/8/2009 Member Since: 1/1/2000 |
Good charts Leonid! So Larry-the girdle on that one seems cool. What about the rest of the diamond?
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| Posted: 3/8/2002 6:05:39 PM | |
| P: 3/9/2002 2:24:13 PM | |
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larry Rough Rock Total Posts: 85 Last Post: 11/21/2002 Member Since: 3/7/2002 |
Shape A Cut Above H&A Carat 0.400 Color E Clarity SI1 Measurements (mm) 4.67-4.70X2.92 Table % 55 Depth % 62.3 Crown Angle ° 34.3 Crown % 15.3 Pavilion Angle ° 40.8 Pavilion % 42.9 Polish Ideal Symmetry Ideal Girdle 1.5-2.7 Culet Pointed Fluorescence Inert It came out 0.8 on the cut advisor. I am considering a platinum or white gold six prong tiffany or a 3 diamond version with two smaller diamonds on either side any suggestions? Can anyone recommend a good place to find rings? Any estimate on how much to pay for this diamond? |
| Posted: 3/9/2002 2:24:13 PM | |
| P: 3/9/2002 3:04:36 PM | |
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Pricescope Administrator Total Posts: 8,265 Last Post: 1/5/2008 Member Since: 1/1/2000 |
Larry, Whiteflash is a good place to get a ring as well: Pricescope |
| Posted: 3/9/2002 3:04:36 PM | |
| P: 3/10/2002 11:19:53 AM | |
moediamond Rough Rock Total Posts: 60 Last Post: 5/19/2002 Member Since: 12/19/2000 |
Feel free to visit the following websites for exquisite looking Platinum rings: www.stuller.com www.overnightmountings.com They specialize in Platinum mountings. Some vendors here have accounts with them and could supply the ring for you. 
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| Posted: 3/10/2002 11:19:53 AM | |
| P: 3/27/2003 3:08:16 PM | |
Pyramid Ideal Rock Total Posts: 2,914 Last Post: 11/11/2009 Member Since: 11/10/2002 |
Found this chart here posted by Leonid. Why do the labs not agree on very thin, thin, medium etc. Is very thin seen as a bad thing by GIA or is it okay as they are allowing a higher millimetre measurement for very thin? Whereas very thin would not get an AGS 0 from their percentage measurement. Ofcourse I know GIA does not rate cut but do you know what their views are on very thin is it a negative when buying a diamond in GIA's opinion?
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| Posted: 3/27/2003 3:08:16 PM | |
| P: 6/26/2003 8:25:36 PM | |
Leon Rough Rock Total Posts: 4 Last Post: 6/26/2003 Member Since: 6/21/2003 |
Is a thin Girdle a bad thing?
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| Posted: 6/26/2003 8:25:36 PM | |
| P: 6/26/2003 9:09:23 PM | |
Rhino Ideal Rock Total Posts: 4,861 Last Post: 11/21/2009 Member Since: 3/29/2001 |
Leonid making plugs? Rhino |
| Posted: 6/26/2003 9:09:23 PM | |
| P: 6/26/2003 9:12:36 PM | |
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Rhino Ideal Rock Total Posts: 4,861 Last Post: 11/21/2009 Member Since: 3/29/2001 |
No. Most ideal cut diamonds have girdles ranging anywhere from thin up to slightly thick. In terms of percentages it should not fall below .51% of the diameter or above 2.95% of the diameter. If you peruse browse Sarin/OGI analysis or AGS Reports you'll see girdle thickness listed in %'s. On a GIA Report they use the descriptive terms of thin, medium, etc. Rhino |
| Posted: 6/26/2003 9:12:36 PM | |
| P: 6/26/2003 9:15:13 PM | |
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Rhino Ideal Rock Total Posts: 4,861 Last Post: 11/21/2009 Member Since: 3/29/2001 |
Great charts Leonid. Looking at the stark contrast between HRD & AGS standards it makes me wonder if they are measuring the girdle thickness at the same places on the girdle. For the curious ... AGS measures the girdle thickness in a place called the "valleys'. There are actually 3 places around the girdle where measurements are taken. For more detailed info check out this link in our tutorial... http://www.goodoldgold.com/the_girdle.htm Peace, Rhino Rhino |
| Posted: 6/26/2003 9:15:13 PM | |
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4:36 PM leonid wrote: 