Modified Round Brilliants and the Isee2 machine...

[GoodBishop]

So I went to a local jeweler last night for two hours and saw their Isee2 machine. It was really quite cool.

However, one of the things I''m looking at for my purchase is the modified round brilliants, like the solasfera, the eighternity, and so forth.

Does anybody know if the Isee2 machine is equipped to handle modified round brilliant cuts, and how they stack up? If the Isee2 machine is only programmed to handle "normal" round brilliant diamonds and not ones with extra facets, then it would be tougher to use the Isee2 machine as a determining factor for a modified round brilliant cut.

And I saw a normal round brilliant that scored a 9.8, and a "hearts on fire" diamond only scored a 9.4, and the difference was noticible (I picked them out without knowing one from the other accurately three times in a row ^_^).

The Isee2 diamonds that are a 9.8 are really quite impressive. I have to say, they''re easilly making the short list.

 

[oldminer]

My understanding is that the ISEE2 device is geared to score their own product very high. That does not mean the ISEE2 diamonds are bad since they are excellent in performance and appearance, but the score is sort of "marketing". It is serious science, but a marketing use of a cool tool combined with scientific methods. I use a different, non-marketing device to measure light output from diamonds in a controlled environment. It is not geared to any brand or style, but can compare apples to apples, rounds to rounds, etc. So long as the round has a table facet, it can be compared for certain facts of light return to another round with a table facet, but choosing which one "looks best" is not an answer the device makes. Selecting simply by which scores highest may work for some folks, but it is not the intended function of the scale reported. If one wanted to swim in a pool with nice warm water, judging by a thermometer you'd choose one in your comfort zone not one way above the point of feeling too hot. How hot is warm or too warm is up to you. The thermometer only tells you the facts, and you make the decision. (A new analogy is created. Will it work? We'll soon see.)

 

[Rhino]

In way of H&A''s you''re right on about the Isee2. They do in fact use proportion sets that are different from most H&A''s on the market and are visual powerhouses in way of 57 facet H&A''s. I have some videos showing some of these differences. I''m impressed that you were able to seperate visually between it and the HoF.

Regarding Isee2 technology and modified rounds ... although the technology was designed around the 57 facet design concept, modified rounds can be tested on it and in fact we do daily.

In your other thread you asked regarding Bscope, this thread Isee2. Major difference to grasp between the 2 digital optical technologies is that the Bscope exam is done in a controlled spot lighting environment while the Isee2 is performed in a controlled diffused lighting environment . Different lighting emphasizes different optical characteristics within diamond.

Spot lighting for fire & sparkle scintillation.
Diffuse lighting for brightness and patterned scintillation (aka contrast).

The Isee2 does however have a fire measurement to it as well.

All the best,

 

[Rhino]

Date: 8/28/2009 3:41:24 PM
Author: oldminer
My understanding is that the ISEE2 device is geared to score their own product very high. That does not mean the ISEE2 diamonds are bad since they are excellent in performance and appearance, but the score is sort of 'marketing'. It is serious science, but a marketing use of a cool tool combined with scientific methods. I use a different, non-marketing device to measure light output from diamonds in a controlled environment. It is not geared to any brand or style, but can compare apples to apples, rounds to rounds, etc. So long as the round has a table facet, it can be compared for certain facts of light return to another round with a table facet, but choosing which one 'looks best' is not an answer the device makes. Selecting simply by which scores highest may work for some folks, but it is not the intended function of the scale reported. If one wanted to swim in a pool with nice warm water, judging by a thermometer you'd choose one in your comfort zone not one way above the point of feeling too hot. How hot is warm or too warm is up to you. The thermometer only tells you the facts, and you make the decision. (A new analogy is created. Will it work? We'll soon see.)

LOL... Dave you know by now I am not easily fooled.

When I was called to examine the Isee2 technology years ago I brought with me what are perhaps the rarest most precisely cut rounds in the world to test the machine along with a variety of rounds ranging from other types of H&A's to common stuff. My stones scored higher than the Isee2 diamonds that had with them at that demonstration.

It works.