Diamond Education

Diamond, Engagement Ring, and Jewelry Buying Guides

Diamond Clarity
Most diamonds have unique clarity characteristics, much like a fingerprint. These distinguishing characteristics can be classified as inclusions and blemishes. Inclusions are enclosed within a diamond, or they extend into the diamond from its surface. Blemishes are confined to the diamond's surface. These characteristics can detract from the pure beauty of the diamond. When light enters a diamond, it is reflected and refracted out. If there is anything disrupting the flow of light in the diamond, such as an inclusion, a proportion of the light reflected may be lost. Diamond Guide
Diamond Cut
Diamond Color
Diamond Clarity
Carat Weight
Diamond Certification
Diamond Care
GIA and AGS Clarity Grade Scale

GIA AGS Image Description Price*
FL - IF 0 Flawless and Internally Flawless
Flawless: No inclusions or blemishes of any sort under 10X magnification. Internally Flawless: No inclusions, but some minor blemishes.		 $6,775
$6,450
VVS1-VVS2 1 - 2 Very Very Slightly included
Contains minute inclusions that are very difficult to see under 10X magnification, even for an experienced grader.		 $6,175
$5,850
VS1 - VS2 3 - 4 Very Slightly included
Contains minute inclusions when observed with effort under 10X magnification. An excellent value as there is no noticeable difference to the unaided eye from VVS.		 $5,700
$5,650
SI1 - SI2 5 - 6 Slightly Included
Contains inclusions noticeable under 10x magnification. An SI1 should not have any eye visible inclusions, but SI2 may, depending on the size and location of the flaws.		 $5,000
$4,500
I1 - I2 - I3 7 - 8 - 9 Included
Contains inclusions that are obvious under 10X magnification and possibly to the unaided eye. GemLogic does not carry I-grade clarity.		 Not
Available
* Price based on 1 ct., H color, ideal-cut diamond.

As illustrated above, you may not notice a significant difference between an SI1 and a SI2. However, you should consider the number, size, brightness, nature, and position of the inclusions of an SI2 graded diamond to ensure that it is eye clean. Some inclusions can be hidden by a prong when mounted, thus having little effect on the beauty of a diamond. An inclusion in the middle or top of a diamond, however, could impact the dispersion of light, sometimes making the diamond less brilliant.

Our diamond consultants can inspect an SI2 graded diamond to ensure that it is eye clean before your purchase. For assistance, please contact one our diamond consultants toll free at 1-877-539-5395 or email us.