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The GIA Cut Grade - The Pitfalls 

A. Fishman & Son Diamonds
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Many consumers today place a great deal of emphasis on GIA certified grades as the hallmark of diamond grading. In this video, Josh Fishman explains the pitfalls of relying on GIA diamond grading when making a diamond purchase. Too many consumers rely on the GIA's Excellent Cut Grade certificate as the foundation of their decision for which diamond to buy. Fishman explains that reliance on GIA grades alone can keep consumers from making the best possible diamond purchase.
Josh Fishman is a third generation diamantaire. He is a proud member of the Diamond Dealers Club of New York as well as the Jewelers Board of Trade. Fishman is the author of Beyond The Four C's: What you should REALLY Know Before You Buy A Diamond.
Read more and shop from New York's premier diamond dealer at
www.afishman.com

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3 окт 2024

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Комментарии : 5   
@Shaneebug25
@Shaneebug25 9 лет назад
Thank you. Your videos are very helpful.
@Shaneebug25
@Shaneebug25 9 лет назад
How should one determine the correct ratio of a diamond that 1.02, 1.10, 1.1.20 etc? Is there a particular formula that a novice diamond buyer can follow ?
@afs580
@afs580 9 лет назад
+MsChocolategirl74 Hi and thank you for your question. A novice diamond buyer cannot just use a formula to determine what the proper dimension a diamond should have for its carat weight. There are historical norms and charts which you can look at for different carat weights of round diamonds. Fancy shapes are much more difficult.
@KCPILOT135
@KCPILOT135 8 лет назад
In regards to determining correct ratio of diameter to carat weight; what should I look for in a fancy shape, particularly princess?
@afs580
@afs580 8 лет назад
Hi, I wouldn't say that there is a ratio to look for. but i find that for a well cut princess cut, this is my guideline: .50ct = 4.5mm .75ct= 5.0mm 1.00ct = 5.5mm 1.25ct=6.0mm 1.50ct= 6.4mm Of course, the faceting of the diamond has to yield a really defined brilliance as well. but brilliance alone is not going to guarantee you a diamond worth the money.
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