GIA Reports- This section will deal with identifying the most commonly seen GIA reports.First: GIA's newest, and current reports, introduced January 1 2006.
GIA's report for Fancy Shaped diamonds between D thru Y-Z Natural Light Yellow is called "GIA Diamond Grading Report" Here's the outside
On these latest GIA reports- whose design was introduced January 1 2006, the depth and table measurements are no longer in the main body of measurements. Instead, they are down at the diagram on the lower right
Natural Fancy Colored Diamonds: GIA issues several reports for natural Fancy Colored Diamonds.
The first one is similar to the standard "GIA Diamond Grading Report"
The second type of GIA Report commonly used for Natural Fancy Colored Diamonds. It's referred to in the trade as a "Color Origin" report.
The "Jacket- or back portion, looks just like the one above.
The inside, denoting it as a "color origin":
As we can see, this report identifies the Shape and cutting style, measurements, Weight, Color Grade, (Sub-categories "Origin", "Grade" and "Distribution"), Comments ( if any) and a diagram ( perfect for those adept at Rubik's Cube, otherwise useless).
It omits a few specifications we're used to seeing the "Grading" reports- these include: Clarity, Depth %, Table %, Girdle, Culet, Polish, Symmetry, and Fluorescence.
For diamonds in the light yellow ranges ( U-V, W-X, and Y-Z), there's an interesting dichotomy.
When a Y-Z color diamond is submitted for the "Full Report", GIA issues a report identical, front and back, to a D color diamond's report.
Additionally, the color would be identified simply as "Y-Z Range"
Submit the same diamond for the "Color Origin" report and you'll get the same outer jacket as a Fancy Intense Yellow Diamond- "GIA Colored Diamond Report"
The inside would have the same info as any other "Color Origin," but in a slightly different format- with a heading of "Identification report"
Remember how GIA terms this shade on the full report? Just a plain old Y-Z Range"
Look how the diamond has all of a sudden become a "Light Yellow, Natural Color". That alone would be reason enough for a cutter of these diamonds to opt for the "Color Origin" report. We've had many diamonds GIA would have graded VS1 or better with the "Origin" report.
Or, the cutter knows it will get I1, and feels that Intense Yellow is better off without the "stigma" of an I1 moniker.
Of course another possible reason for opting for a color origin could
be that the diamond is an imperfect piece of junk.
AS with ALL
diamonds of note- GIA or not- close physical examination by an expert is necessary to determine valuation.
A "Color Origin" diamond might very well be a far better purchase than another Fancy Colored Diamond with a GIA report calling it Internally Flawless .
This article is admittedly not a complete listing of GIA products. For example, these is a "mini" GIA report called a "Diamond Dossier".
In addition, we currently have information for the last 5 years or so. We'll compile the photos of older GIA reports in the near future
Next Up: GIA reports from prior to 2006.