Pricescope Upgrade/Maintenance Is Complete.
We still have a few things to iron out. If you see any bugs, issues or have any concerns, let us know here in this discussion.
These figures are incorrect - the crown angle, pavilion angle, table and depth ranges are too restrictive.Both stones are totaly Bad. Please stay away from this two diamond. Its not worth it. To much light leakages( makes your diamond apear dull and darker due the the circle of death) .. better find another diamonds...
Best proportions below you can follow and it won' go wrong.
Table 54 - 57%
Depth 60.5 - 61.8
Crown Angle 34 - 34.5
Pavillion Angle 40.6 - 40.8
Star : 50 -55
Lower Half : 75-80
Yes, the whole reason I gave you the measurements to aim for above is to show you how to avoid stones that are not well cut. 41.0 would be the absolute max for this crown angle...not 41.1, or 41.2, and definitely not 41.8. This is how you want the images to look.Thank you very much for your help.
Do ALL these proportions have to match in a single stone? If not, which are the most important "must haves" and which are the least important?
Here are the numbers from the 2nd picture, the one that you drew the circle on. So only the table and pavillion angle are slightly off. To an amateur like me, doesn't seem like a huge difference. Do these small differences make/break the stone?
Table 60 %
Depth 61.9 %
Crown Angle 34.0°
Pavilion Angle 41.8°
Star Length 50%
Lower Half 80%
Because the values are too restrictive, why are you excluding 35 crown diamonds, 41 pavilion diamond (if lined with 34 crowns) and up to 62.3 depth?And why is incorrect?
The coloured chart in the HCA tool should help illustrate which angles complement each other, but one needs to take into account fire and dispersion characteristics of different combinations, which informs decisions on crown angle and table sizes.Ahh Ok thanks. I understand . Thanks
The coloured chart in the HCA tool should help illustrate which angles complement each other, but one needs to take into account fire and dispersion characteristics of different combinations, which informs decisions on crown angle and table sizes.
Is that ASETscope?Yes and thanks for sharing me about the HCA. Honestly I dont really depend on HCA and I know how it works . I only depend on the scope analysis.
I think he's in the trade Oosh, probably means a loupe for analysis.Is that ASETscope?
Hearts and Arrows viewer / scope?
Each can be used to assess different aspects of diamond performance, which is why Pricescope forum regulars advocate use of as many as possible, to give a complete, empirically-assessed understanding of a stone's performance.