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Gia Certified Diamonds
By http://www.diamondhome.info

GIA certified diamonds are gemstones that have been through a rigorous inspection to determine the quality and worth of the gemstone.There is a specific process that is followed when the diamond clarity rating occurs, this article will briefly discuss the GIA rating process.

When a diamond 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 diamond is placed under magnification, and it is illuminated with darkfield lighting. This specific lighting helps to show diamond characteristics that cannot be seen under regular overhead light.

All GIA certified diamonds are rated under the 10x magnification. During the rating process, the examiner may zoom in to get a better look, but the rating must be based on the 10x magnification.

When an examiner is rating a diamond's clarity, they are looking for flaws and/or imperfections in the stone.

If the diamond has fewer flaws, then the gemstone's value increases. And on the other hand, if there are many flaws in the diamond then the value will decrease.

The first view of the diamond is always through the top of the diamond, the cutlet area of the gemstone. Because the diamond is held by the girdle, the examiner has the ability to see all of the aspects of the inner stone.

Then, the diamond is set down and the examiner picks up the stone again by the ends (table to cutlet). The examiner looks through each facet of the stone, searching for any imperfections or flaws that may be present.

There is a very specific diamond clarity chart that each GIA certified diamond is compared to. For more details about the diamonds and engagement rings, visit our website at: http://www.qualityvintageengagementrings.com.