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Quality of the Princess Cut Diamonds

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pricescope

Ideal_Rock
Joined
Dec 31, 1999
Messages
8,266
We often say that table and depth data are not enough to evaluate the cut especially for fancy shaped diamonds.

Here is what can be done using modern technologies.

can use these models to compute virtual images and analyze visual performance of these diamonds.

to see virtual models of the diamonds and analyze cut quality.

Here I picked a few 3D models of Princess diamonds. All of them have close depths (71%-73%) and tables (76%-79%).

You guys can play with these GemAdviser files:








simulations for three of them. Keep in mind, this is not a round stone and it is very difficult to find fancies with little light leakage.


[/u][/u][/u][/u][/u][/u][/u][/u][/u][/u]
 

pricescope

Ideal_Rock
Joined
Dec 31, 1999
Messages
8,266
For those who ventured to play with gem-files I recommend to do the following.

.

2. Switch both to Office (standard lighting) from lamp-button on the toolbar (
).

3. Run animation for both (green arrow button on the toolbar). Wait for the movie to be generated.

4. Watch and compare both diamonds in the motion.

Pretty realistic, isn't it?[/u][/u]
 

Garry H (Cut Nut)

Super_Ideal_Rock
Trade
Joined
Aug 15, 2000
Messages
15,327
Here is my rating for each of these stones.
Best through the Ideal-Scope are marked first
2nd Pr970647.gem
3rd Pr970646.gem
4th Pr970618.gem
1st Pr970604.gem
5th Pr970583.gem
6th Pr251503.gem

These stones all looked equal best in a movie with disco lighting
Pr970646.gem Pr970604.gem Pr970647.gem
Then 4th was Pr970618.gem
5th was Pr970583.gem
and 6th Pr251503.gem

Anyone have a different opiniion?
 
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