| Author | Topic: Price differentials at the high end!? |
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Gonnadoit rough rock Posts: 4 |
posted 10-25-2001 10:50 AM
I have done the education thing and now I am shopping around, however, I still am a bit confused as to some of the differentials at the high end. Take for example the following: Stone#1: round brilliant Stone#2: round brilliant Am I to believe that even though the two stones are 0.07 carats apart, that the prices are virtually the same due to the marginal differences in the latter variables? Any insights are more than welcome. |
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leonid Moderator Posts: 972 |
posted 10-25-2001 11:28 AM
D-IF are very rear so the price could vary quite a bit. Are they from the same source? What grading reports do they have? How do you know that they are ideal? Do you know crown and pavilion angles? |
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Gonnadoit rough rock Posts: 4 |
posted 10-25-2001 11:55 AM
Thanks for your reply. I checked and both stones are certified by GIA. They are also from the same source. Unfortunately the GIA reports don't give crown or pavilion angles, so I guess I should be a bit suspicious at best. Would you have any suggested parameter ranges to keep in mind, if they are able to supply such information? |
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leonid Moderator Posts: 972 |
posted 10-25-2001 12:11 PM
You could inquire about Sarin or Ogi measurements for these diamonds to obtain crown and pavilion measurements. You have to watch out for steep/deep crown/pavilion. What are the measurements for these diamonds? You also might want to hire independent professional gemologist/appraiser to help with the selection. |
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Gonnadoit rough rock Posts: 4 |
posted 10-25-2001 01:55 PM
Thanks for your insights about the Sarin and Ogi measures. For your information the measurements for each diamond are: Stone#1: Stone#2: Is there some way of caluclating angles via these measurements? |
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leonid Moderator Posts: 972 |
posted 10-25-2001 02:13 PM
I plugged the data for #2 into DiamCalc ( http://www.cutstudy.com/octonus/english/diamcalc/index.htm ) and it fits ok with close to Tolkowski proportions. I wasn't able to get nice combinations of crown and pavilion for #1... Based on the data #2 looks like better deal but you have to compare them yourself or better yet with independent expert. |
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leonid Moderator Posts: 972 |
posted 10-25-2001 02:18 PM
You can also play with your data using this online tool: http://www.cutstudy.com/cut/Brill/e_ray_thin.htm (You have to use Internet Explorer). It is not as handy as DiamCalc but one can use it for a simple task like checking the proportions. |
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Gonnadoit rough rock Posts: 4 |
posted 10-25-2001 02:53 PM
Leonid, Thanks for the quick evaluation! I'll play with the software you mention as well. The hunt continues... |
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