Diamond Jewelry Forums

Picture Gallery

Video Gallery

|

Search |

Posted Today |

Most Active |

Help

ť Home ť

ť Diamond Prices and Grading ť

ť RockyTalky ť

ť Girdle Thickness Difference Between GIA and Sarin Report

Girdle Thickness Difference Between GIA and Sarin Report

P: 5/9/2006 9:13:18 PM
Daveo Rough Rock Total Posts: 17 Last Post: 5/13/2006 Member Since: 5/4/2006	I have been looking for a diamond for a E-ring. Just want to thank everyone for helping me because my gf is very picky and I want to make sure I get something she will like. I found a diamond I like, but the GIA report and the Sarin report does not match. Everything except the girdle thickness matches. GIA stated it is thin and Sarin stated it is slightly thick. Is this common for the two to differ? The vendor who has this stone is one of the reputable vendor. Should I be concern since the GIA and Sarin report is different?
Posted: 5/9/2006 9:13:18 PM

There are 6 replies to this message. There are 6 replies on this page.

P: 5/9/2006 9:15:07 PM
JulieN Ideal Rock Total Posts: 7,144 Last Post: 11/22/2009 Member Since: 7/25/2005	You say EVERYTHING matches but the girdle? Take the total depth%-crown height%-pavilion depth% and tell me what you get.
Posted: 5/9/2006 9:15:07 PM

P: 5/9/2006 9:25:40 PM
Daveo Rough Rock Total Posts: 17 Last Post: 5/13/2006 Member Since: 5/4/2006	Date: 5/9/2006 9:15:07 PM Author: JulieN You say EVERYTHING matches but the girdle? Take the total depth%-crown height%-pavilion depth% and tell me what you get. JulieN, Sorry, I made a mistake the total depth does not match 100%. The GIA does not have the crown % or the pavilion%. GIA depth is 62.1% and the table is 56%. The report states slightly thin to thin. Sarin: Depth 61.8% Pavilion 43.0% Crown 15% I just don't know if I should trust the vendor. The date on the Sarin report is tomorrow which kinda rasise a red flag.
Posted: 5/9/2006 9:25:40 PM

P: 5/9/2006 9:27:24 PM
JulieN Ideal Rock Total Posts: 7,144 Last Post: 11/22/2009 Member Since: 7/25/2005	61.8-15-43=3.8 I guess that's a slightly thick girdle. I know it's not really that simple... but Sarin gives the girdle range of the valleys. I guess anyone can set the date to whatever, just like cameras.
Posted: 5/9/2006 9:27:24 PM

P: 5/9/2006 9:42:19 PM
Daveo Rough Rock Total Posts: 17 Last Post: 5/13/2006 Member Since: 5/4/2006	I am getting more confused. The girdle thickness is stated 1.8% only. Below is the Sarin report (sorry don't know how to upload the info): Weight: 1.08 Diameter: 6.57 (6.56-6.58) Total Depth: 61.4% Crown Angle: 34.3 (34.0-34.6) Crown Height: 15.0% (14.6-15.4) Pavil Angle: 40.7 (40.5-41.0) Pavil Depth: 43% (42.5-43.4) Culet: 0.2% Table Size: 55.8% (55.6-55.9) Girdle: 1.8% (1.3-2.3) Proportion: 0 At the right, there is a picture of the diamond. The girdle over there shows 3.9%. Can someone explain why the difference?
Posted: 5/9/2006 9:42:19 PM

P: 5/9/2006 9:56:17 PM
Garry H (Cut Nut) Ideal Rock Total Posts: 11,577 Last Post: 11/22/2009 Member Since: 8/16/2000	Date: 5/9/2006 9:42:19 PM Author: Daveo I am getting more confused. The girdle thickness is stated 1.8% only. Below is the Sarin report (sorry don't know how to upload the info): Weight: 1.08 Diameter: 6.57 (6.56-6.58) Total Depth: 61.4% Crown Angle: 34.3 (34.0-34.6) Crown Height: 15.0% (14.6-15.4) Pavil Angle: 40.7 (40.5-41.0) Pavil Depth: 43% (42.5-43.4) Culet: 0.2% Table Size: 55.8% (55.6-55.9) Girdle: 1.8% (1.3-2.3) Proportion: 0 At the right, there is a picture of the diamond. The girdle over there shows 3.9%. Can someone explain why the difference? 3.9% - 1.8% normal thickness difference between the valleys and the peaks of the girdle thickness accounts for that difference. GIA use a human observer to make a judgement at the thin spots (valleys) - an excellent system because often the stone has different thicknesses at diff places. Also there are other minor facet structures that can change the girdle thickness at the valleys - so go with the GIA report data either way it is not a problem Also if the report is not more than a year or so old you can enter the gIA report # and stone weight here and get more info from GIA http://www.gia.edu/reportcheck/ Garry Holloway FGAA DipDT HCA and Ideal-scope developer http://www.ideal-scope.com and http://www.HollowayDiamonds.com.au
Posted: 5/9/2006 9:56:17 PM

P: 5/9/2006 10:03:41 PM
Daveo Rough Rock Total Posts: 17 Last Post: 5/13/2006 Member Since: 5/4/2006	GarryN- Thanks for the advice. The report is on the GIA website. It makes me feel a lot better that it is common the Sarin and the GIA report do not match.
Posted: 5/9/2006 10:03:41 PM

Previous Page

Next Page

Ť Confused in the Carribean Ť

ť What do you think of this diamond? ť

Next Topics
If you could do it all again.... Platinum and gold scale new peaks First time buyer question Michael B Princess rings style differences Please look at the SARIN and IDEALSCOPE for this diamond Princess Plus questions If you're looking to put a square-ISH diamond in a square setting... IdealScope Image tiffany and ring size? Honest Thoughts by Asscher Owners Tiffany price?? Thin channel set e-ring with a round diamond. Possible? JAZMINE!!!!!! Advice needed on picking setting from WF Ring return to Wf (sizing) from Canada?? So what exactly is Fed Ex's policy on shipping jewelry insured? Ladies - help! My fiance doesn't want a solitaire - what should I do? My Quest Project Opinions on this emerald cut diamond Just purchased my first diamond, what do ya think? Chipped diamond And the winner is....... ... Can someone explain to me how signed pieces/ebay works? What to do with a 7mm, included, RB diamond? For Decodelighted, check this out! What is a keel and how does it affect the faceting pattern? About to order this diamond. What do you think of this rock? Repeat Customer? Newbie who needs cushion advice BIG HONKER Vatche Broke My Princess - Need Help w/ Replacement

Jump to:

Contact Us \| Back Home \| Privacy Statement \| Forum Agreement \| Forum Policies
Ideal BB Version: 0.1.5.4.beta1	Message forum software powered by the Ideal BB

Pricescope - Knowledge - Diamond Prices - Tools - Resources - About

Š 2000-2009 Pricescope. Terms of Use Privacy Policy Disclaimer
forum archives