If J is a description of the colour of a white diamond, that grade is given to the near colourless diamonds.
You can learn more about this grade from the chart, below, which shows you the full colour range of 'colourless diamonds' from D to Z.
The term is 'eye jay' (I-J) and the classification indicates a 'near colourless' white. You can read more about this classification and see it in context, below.
Depends on your grading scale, but an 88 percent would probably be a B+ (good job!)
88.3%
Proof
66.67% D
The grading report or the diamond certificate enlists the individual characteristics of a particular diamond stone. To ensure the genuineness of diamond jewelry, it is important to demand its grading report from the seller before buying.
In grading a diamond's clarity, VS indicates Very Slight.
The 4 C's of diamond grading include the carat weight, cut, color and clarity. When one decides to buy a 4 C's diamond, one should consider the cut of the diamond, which is how the diamond appears in terms of proportions and brightness.
The indicator E-F in diamond grading may indicate a colour range for a white diamond. It is in the most desirable range, also known as colourless. You can review the colour range, below.
The initials I-J indicate colour when describing a 'white' diamond, and indicate the diamond is slightly yellow.
Robert J. Hoyle has written: 'Machine stress grading of lumber less than nominal 2-in. thick' -- subject- s -: Grading, Lumber, Testing, Wood
A certified diamond has been inspected and and graded and registered according to GIA (Gemological Institute of America) standards. A diamond grading report is issued showing a comprehensive analysis of the diamond.
AA 5 has several meanings, depending on the context. It is apparently a rating system in Great Britain for lodging. (AA, 5 diamond.) For diamond stones, this rating is sometimes applied to jewelery-grade black diamonds, as a grading system for clarity. This is not a grading scale used by the Gemological Institute of America or the European grading scale. It is a scale used, however, for industrial diamonds, according to the link, below.
P2 is a grading indicator used by gemologists certified by other than the Gemological Institute of America (GIA). P2 corresponds to the GIA grade I2: at least two (visible) Inclusions. You can read more about diamond grading by different gemologists, below.
j
The reputable grading industry includes:Gemological Institute of America (GIA)European Gemological LaboratoryBoth offer grade reports and appraisals that are consistent and reliable.
no