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- www.diamondarticles.com
  
  Diamond Proportions - Diamond Articles
  
  Depth Percentage – The depth of a stone measured from the table to the culet. It is expressed as a ...
  
  2024-07-08
  
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- www.lumeradiamonds.com
  
  Diamond Cut - GIA Loose Diamonds
  
  Diamond Cut affects appearance and value more than any other single factor. Find out how ... DIAMOND CUT PROPORTIONS. Diamond ... Excellent, Very Good, and Good GIA Cut Grades. Evaluating ...
  
  2024-07-10
  
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Round Diamonds - GIA Loose Diamonds

日期：2024-07-13

Tolkowsky's work described the ideal proportions of a round cut diamond for maximizing light return (or brilliance) and ......

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Cut Grading Chart: Ideal Perfect Triple Excellent Hearts & Arrows

日期：2024-07-13

30 Nov 2014 ... Ideal or excellent cut diamonds are premiums. The proportions, glitter, brightness or brilliance and ......

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Diamond Review - Ideal proportions

日期：2024-07-13

Ideal Proportions. In 1919, Marcel ... An "ideal cut," according to Tolkowsky, has the following characteristics: Round in ......

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Diamond Review - Proportion tables

日期：2024-07-10

American Ideal Cut, International Fine Trade Cut, US Domestic Average Cut, Below Average. Table %, 53.0%-58.0% ......

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Diamond cut - Wikipedia, the free encyclopedia

日期：2024-07-13

Proportions[edit] ... There are at least six "ideal cuts" that have been devised over the years, but ......

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Diamond Cut Quality | The Diamond Pro

日期：2024-07-08

For AGS Certified Diamonds, a cut grade of “Excellent” will suffice, but you will notice added brilliance by upgrading to “Ideal” ... or you could learn about the various proportions of diamond cut and trust ......

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Cut Estimation Tables - GIA | On Diamond Cut

日期：2024-07-14

These tables can be used to estimate the proportion cut ... values intersect is the estimated cut grade (Excellent)....

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GIA | On Diamond Cut

日期：2024-07-09

I'm pleased to introduce the new GIA Diamond Cut Grading System. ... and reassuring conclusion of our research is that there is no single set of proportions that define a well-cut round brilliant diamond....

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