The first screen shot has the stone depth and known weight (and polish) entered into the scanner manually. This I believe is done to increase the scan accuracy; but Prof A is insistent that it is one of many fail safe processes to ensure the system accuracy. The slide is out of focus, but the two red bits of data are the manually entered depth and the weight. The data I gave was a guess as the 2 stones we ran, they are the good and bad CZ's we sell on the
www.Ideal-scope.com (I ran the same 2 stones in Vegas and this caused some 'anomalous' results because the bad stone scored extremely well on the measure of 'intensity'. Prof A assured me the machine had not been properly adjusted before it left for Vegas).
The depth of the stone shows a tiny red warning flag you will see on later clearer slides. This is set with a tolerance from the measured difference – 0.002mm I think. Note the bar in the upper left indicates the machine is working. I am told the processing time is a few minutes and one machine can process 2,500 stones a month, with 1 operator operating 4 machines. I assume booking in staff, gemologist for polish analysis, report printing and laminating and clarity plotting are in addition.


You can also see in the fuzzy photo above there is a little image in the upper left of the diamonds table shown in reflected light. Many little images flashed on the screen while the machine made little whirring noises; the image is out of focus because I only had a second to take the photo. Prof A told me the system measures the position of each corner of the table from this reflected light image (there are little red X's on the corner positions). This gives them the ability to measure more accurately.

Now we can see the completed screen. Firstly note the little red warning flag beside the depth.
But the results for this poorly cut, but symmetrical nail head CZ were perhaps also like that in Vegas.
| Poor - Range - Excellent | Bad CZ | Good CZ |
Brilliance | <80 | >150 | 134.71 | 149.21 |
Sparkle | <5 | >70 | 75.38 | 82.89 |
Intensity | 100-105 | >160 | 173.44 | 110.22 |
Explanations were offered, but I did not want to waste a lot of time. There were little warnings that this stone may have been outside the 'normal range' as it had little red flags on crown and pavilion angles. We moved on.
Below is the scan for the good CZ stone. In fairness I should say that both ISee2 and the BrillianceScope give similar undifferentiated and excellent scores for these 2 stones.

The light reading is said to be done from different zones or regions. http://www.imageminc.com/products/VerigemInstrument.html
Prof A would not describe the lighting environment, but both he a Dave maintain it is a very reasonable environment. They claim however that the light will not favor symmetrical stones the way ISEE2 and BrillianceScope do with their respective rotating bar light and circular ring light.
I was impressed that axial symmetry, which is the average of all axes, has been included as per this article.
Prof A said the gauging or scanning system has a high level of accuracy. I asked if they can produce .stl files as part of the grading service so users could have more accurate 3D files for use with say the AGS grading system. He said they had no plans and could not imagine why they should and implied they would not help another lab. The scan is said to be + - 5 microns gauging accuracy.
Dinner with Dave
That evening we went to Dave's for dinner.



Here is Dave holding his 2 great loves, Diane on the left and in the center his MV Augusta Brutale


They live in a lovely quiet suburban area about 40 minutes drive from downtown. The house has a lovely outlook to a pool side Cabana with well stocked fridge :). Dave often rides one of his 'harem' into work; they are mostly BMW variants, including the blue 3 wheeler. Diane said to me (quietly on the side) “Some men play around on the side, but the bikes are his passion”. Dave is probably the most genuine guy you will ever meet. No pretence, no games or politics, just plain speaking and very polite. We enjoyed a lovely pool side BBQ and balmy evening.
New York City
Next we trained it to NYC. Below is Cydonia and Barry in their 30
th floor apartment - we met on the
Place on Wheels in Feb 2005. The closest we came to the Museum of Modern Art (across the road from the hotel) was seeing this truck load of sculpture being unloaded. Of more interest to us was the Frick Museum, a turn of century mansion art gallery.






The Metropolitan Museum is one of our favorites, and they had numbered exhibits with talking handsets. On Sunday morning we went to a Broadway jazz club for Gospel singing. They were fab – one of the trips highlights, that evening we went to the Rock Church for what we thought would be more of the same. How wrong were we? It was a regular Pentecostal type church with a Pommie Chaplan with an out of tune guitar and a flat voice. There was a fair bit of hallelujah style weeping and wailing too. Not quite what little Metho-Presbuttons like Drena and Garry grew up with. We could hardly leave mid service though, as there were only about a dozen parishner's and they were acutely aware of making us more than welcome by passing bibles and hymn books to us throughout the service.
I was very good at taking my vacation in NYC. Apart from several phone calls, one Jazz club dinner and a bit of shopping for some tools for Stella, there was no other work done. But had to take these few photo's. The first 2 are Harry Winston windows. The peep hole on the right has a 10ct oval diamond ring in it (with a dreadful bowtie). De Beers are opening a new 5th Ave store soon; just had to get the incongruous US flag into the pic. The US Govt has had a warrant for the arrest of De Beers exec's since the 1960's for monopolistic behaviour until very recently when De Beers paid out and settled some long standing cases.






This shop in fashionable Soho is Teno, a German brand of Stainless Steel that we have had in stock for the last couple of years. Drena had a fascination for the external fire-escapes – this building had 3. And finally Drena and Garry sharing one of the very inexpensive and healthy meals that one can self select from the many NY salad bars. All up less than $20, complete with quite nice light Italian red in plastic cups.