Diamond Center

At Arnold’s Jewelers we carry the finest GIA and EGL USA certified diamonds where custom design work is always available!

The GIA (Gemological Institute of America) is among the most respected organizations in the diamond industry sets the standard for diamond grading and gemological identification. Diamond characteristics documented in this highly esteemed grading system are: Shape and Cutting style, Measurement, Carat weight, Color grade, Clarity grade, Cut grade, Finish, Polish, Symmetry, Fluorescence and any additional characteristics not already mentioned in the report. GIA is the world’s oldest, largest and most respected independent laboratories and actually developed the “4 C’s” diamond grading scale.

EGL-USA is the most popular diamond certification in the United States. The EGL (European Gemological Laboratory) is accredited with introducing new approaches to diamond grading and certifying diamonds measuring less than one carat. EGL characterizes diamonds by their Carat, Color, Clarity, Polish and Symmetry and Fluorescence. EGL-USA is recognized for establishing the “SI3” designation for diamond clarity.

4Cs to Diamond Grading

Cut: Out of all the 4Cs, cut has the greatest effect on a diamond’s beauty. Determining the quality, the grader evaluates the cutter’s skill in the fashioning of the diamond. The more precise the cut, the more captivating the diamond is to the eye. Different Cuts: Round, Princess, Oval, Marquise, Cushion Cut, Pear Shaped, Emerald Cut, Asscher Cut, Radiant Cut and Heart Shaped.

Color: Color refers to a diamond’s lack of color when grading the whiteness of a diamond. A diamond with a color grade D is the highest possible (no color to the diamond), while Z is the lowest. Colorless diamonds are the most rare of all diamonds. Other natural colors (blue, pink and red for example) are known as “fancy” and their color grading is different than white colorless diamonds.

Clarity: Diamonds can have internal characteristics known as inclusions or external characteristics known as blemishes. Diamonds without inclusions or blemishes are rare, however, most can only be seen under magnification.

Carat: The carat is the diamond’s physical weight measured in metric carats. One carat equals 1/5 gram and is subdivided into 100 points. Carat weight is the most objective of the 4Cs.

“Your North Haven Diamond Center"

- Arnolds Jewelers