When a solitaire is rated according to the Gia clarity standards, it is first cleaned and then the gemstone is picked up by a set of tweezers. The gemstone is picked up by the girdle of the stone to give the inspector the best view.
The solitaire is located under magnification, and it is illuminated with darkfield lighting. This exact lighting helps to show solitaire characteristics that cannot be seen under regular overhead light.
Gia Certified Diamonds
All Gia certified diamonds are rated under the 10x magnification. While the rating process, the interpreter may zoom in to get a best look, but the rating must be based on the 10x magnification.
When an interpreter is rating a diamond's clarity, they are finding for flaws and/or imperfections in the stone. If the solitaire has fewer flaws, then the gemstone's value increases. And on the other hand, if there are many flaws in the solitaire then the value will decrease.
The first view of the solitaire is always through the top of the diamond, the cutlet area of the gemstone. Because the solitaire is held by the girdle, the interpreter has the capability to see all of the aspects of the inner stone.
Then, the solitaire is set down and the interpreter picks up the stone again by the ends (table to cutlet). The interpreter looks through each facet of the stone, searching for any imperfections or flaws that may be present.
Top Rated Engagement Rings
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Top Rated Engagement Rings
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