Talk:Diamond color

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More Color Info?

The article does not mention what specifically leads to pink, purple or black diamonds. Does anybody know what causes this? Are, or how are black diamonds rated; by opacity?

[edit] Expand

Shouldn't this article be expanded to discuss the grading of fancy-colored diamonds? All it currently (10/18/06) says about fancy-colored diamonds is that they are graded on a different scale than regular diamonds. ~ ONUnicorn (Talk / Contribs) 14:43, 18 October 2006 (UTC)

To answer the above question to the best of my ability... Fancy colored diamonds are not graded in a best to worst scale the same way as white diamonds. The "color grades" given to fancy colored diamonds are more descriptive phrase than definitive grade. Combinations of descriptive words such as Fancy, Intense, Vivid, Light, Deep and Dark are attached to the colors of the stones.

Black Diamonds are opaque black stones. They are simply heated until done. No in between shades that I have ever seen.

The valuation of diamonds on a wholesale level is based on simple supply and demand factors. There are several independent sources that track the sales of diamonds being traded at this level. The data that is collected is then averaged and compiled into a grid which is then used as the base price for an average stone.

Due to the rarity of Natural Fancy Color Diamonds, and the closed doors behind which they are sold, there is not enough sales data to distill down into definitive price classes for fancy colored diamonds. It is more of case of what the market will bear at any given time.

Hope that helps someone, 70.20.66.113 01:09, 28 January 2007 (UTC)

[edit] Summary table of grading scales

I just finished a grading summary table of various grading systems. I would like to know if it shows on various screens well. Please drop a note here if you notice problems, and if severe please remove the transclusion - If you do so, please specify here what the problem was. The table is very complex, and while you might take a shot at fixing any errors, please be aware that small changes can screw up the formatting.

I would like to confirm the Scandinavian Diamond Nomenclature grading scale. The ref I cited, I would really prefer to do away with it, if a better citation for the grading scale could be made. Also, present status on the CIBJO, and IDC scales should be checked. I did find one website that broke the CIBJO "Slightly tinted white" into "Very sl..." and "Sligh..". I do not trust this source as there is patently wrong information stated there - (ie the reason color grades "A" "B" and "C" do not exist is because diamonds THAT pure are believed to not exist!). I am not as familiar with the european standards so if you know please help with a quality source.SauliH 07:43, 22 February 2007 (UTC)

I like the table, but wanted to let you know that, at least on my screen, some of the longer words are cut off in the middle. For example, I see "Wesselt" and "Top Wesselt" and "Commer White". Then again, I usually don't browse the internet full-screen, and that can mess up formatting.~ ONUnicorn^{(Talk|Contribs)}problem solving 15:21, 22 February 2007 (UTC)

That's what I was afraid of. I will try to get some work done on it tonight. Does it look REALLY bad - bad enough that it cheapens the look of the page? ie should it be taken down for the time being? SauliH 15:28, 22 February 2007 (UTC)

No, it doesn't look REALLY bad. It's only 3-4 cells that are cut off, and it still provides useful information and looks nice. I'd leave it up, and just work on it when you have a chance. ~ ONUnicorn^{(Talk|Contribs)}problem solving 15:54, 22 February 2007 (UTC)

I have an idea on how to make it work, will attempt a change later tonight.65.248.215.97 01:09, 23 February 2007 (UTC) Ok this was me, computer at work logged me off... SauliH 01:11, 23 February 2007 (UTC)

Ok first step was to reduce font-size to 90%. The words I fear will not be read are the "exceptional white" grades... do these read ok now? The next step I am toying with is to start abbreviating... I do not like that option as much - but if I need to go there I will. My sandbox presently has some abbreviations made to it, with a key added in the footnotes.SauliH 04:58, 23 February 2007 (UTC)