Diamond.com provided a chart for Table and Depth the range % between Ideal and Excellent for round diamond. Table/Depth for Ideal range 53-58%, 59-62.5%.
While Table/Depth for Excellent range 52.5-62.5%, 57.5-63.5%.
Diamond info:weight 1.5 ct, Depth 62.7%, Table 57%, Finish G/G, Color F, VVSI.
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How do I know if the dimond is Ideal or Excellent
Started by tamiethan, Nov 29 2005 02:53 PM
2 replies to this topic
#2
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- A-List Jeweler
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- 1,790 posts
Ideal Diamond
Posted 30 November 2005 - 11:58 AM
Grades on paper that are described by websites that don't view diamonds really don't mean anything. Don't confuse finish grades of polish and symmetry with light performance. For more info on the actual light performance you can go to:
www.gemex.com
www.isee2.com
www.gemex.com
www.isee2.com
Jan
For those that want to know the truth about diamonds, just ask.
dbof.com
For those that want to know the truth about diamonds, just ask.
dbof.com
#3
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- A-List Jeweler
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- 120 posts
Ruby
Posted 01 December 2005 - 08:19 AM
Many vendors have their own definitions of Ideal, some of which are loose enough to include nearly any diamond.
The AGS, which uses the term Ideal as a grade, takes in to consideration polish, symmetry and proportions and most recently performance. Most important to a diamonds visual appeal is the proportions and symmetry. Ideal proportions vary in relation to each other.
As Jan mentioned, there are some tools that quantify the light return and performance of diamonds. These maybe helpful in helping you select a diamond, but like all technologies they do have tolerances.
The more information you can gather about a diamond the better. If you are paying for an Ideal cut, you should make sure that is what you are getting.
The AGS, which uses the term Ideal as a grade, takes in to consideration polish, symmetry and proportions and most recently performance. Most important to a diamonds visual appeal is the proportions and symmetry. Ideal proportions vary in relation to each other.
As Jan mentioned, there are some tools that quantify the light return and performance of diamonds. These maybe helpful in helping you select a diamond, but like all technologies they do have tolerances.
The more information you can gather about a diamond the better. If you are paying for an Ideal cut, you should make sure that is what you are getting.
