Saturday, June 11, 2011

How to evaluate a diamond clarity

First, let's address the question of the definition of clarity. A Diamond's clarity is just a measurement used to describe the absence or presence of internal or external defects within the diamond. It is extremely rare to find a diamond ring that perfect brightness (alias a complete lack of defects). Fortunately, however, most of the defects cannot be seen with the naked eye. Instead, a jeweler a magnification loupe use to detect these imperfections.

There are two main types of issues that contribute to the rank of the clarity that a diamond has. The first is a "integration". This refers to internal defects which present on the diamond. Some examples of the inclusion within a diamond imperfections; Tiny spots of black, white, or other colors; cracks and colored or uncolored crystals. The second point is a "slur". Spots are found on the surface/outside of a diamond and usually occur during the cutting of the diamond or polishing of the diamond.

The Gemological Institute of America (GIA) ranks of a diamond clarity with 10 X magnification. Diamonds should come up with a report that tells you what the clarity of your ring. Ask a jeweler to see this report prior to the purchase of a diamond ring. There are several different types of clarity. Below is a list of the grades, and an explanation of what each rank for your diamond means.

Fl - Flawless: This means that the diamond has no internal or external defects.

IF - Internally Flawless: used to refer to a diamond which has no internal flaws exist, but some slight external stains may have.

& vvs1-vvs2 Very, very light included: used to refer to diamonds that have minute inclusions that are difficult for even an experienced grader.

& vs1-vs2 Very slightly included: used to refer to diamonds that minute inclusions that are not readily seen by an experienced grader.

& si1-si2 Included: something used to refer to diamonds have inclusions that are easily detected by an experienced grader.

i1-i2 & Included: used to refer to diamonds that have inclusions that may affect the Diamond's transparency and brilliance.

Of course, the higher up on the scale you are, the more valuable the ring is, and how expensive. Remember, though, most of the time of the diamond clarity and brightness is not affected. It takes an experienced grader with a magnifying loupe to detect most inclusions. The most important thing to remember is that it is the position of the spots or inclusions which can make the biggest impact on a Diamond's clarity. Read the report that comes with your diamond and your jeweller for advice on which ring positions of the less desirable to defects are present.

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