A diamond grading report is a document that is basically a blueprint of your stone. It tells you the 4Cs - color, clarity, cut, and carat. It also will tell you if the diamond has been treated. From my experience (shopping for my engagement ring), it's very important to have a report so that you know you're getting what you paid for, since an untrained person (like me) would not be able to identify these things. The jeweler we got my ring from said GIA is the best type of report because if I ever wanted to trade up, having that report might actually increase the price of the stone, whereas a report from a less reliable place might lower it - they've been around longest and are most established. If you want to know exactly how the 4 Cs are graded check out the GIA website - http://gia4cs.gia.edu/ - which tells you how it's done.
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 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 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.
"fcly" is not a commonly recognized term in diamond color grading. The standard diamond color grading scale ranges from D (colorless) to Z (light yellow or brown). If you have more context or information, I can try to provide a more accurate answer.
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.
The standard magnification for diamond clarity grading under FTC guidelines is 10x. This level of magnification allows gemologists to accurately assess the internal characteristics of a diamond to determine its clarity grade.
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.
H1 is not a common notation for describing a diamond. H is one description for a colour. Numbers usually follow V, VV, or VVS; S, SI and so forth, indicating the number of visible flaws in a stone. H1, then, may be a typo in a description.
The reputable grading industry includes:Gemological Institute of America (GIA)European Gemological LaboratoryBoth offer grade reports and appraisals that are consistent and reliable.
The letter "D" inside a ring typically signifies that a diamond is of the highest quality on the diamond color grading scale, which ranges from D (colorless) to Z (light yellow or brown). This grading indicates that the diamond has no noticeable color, making it highly sought after in jewelry. The "D" designation is often associated with premium diamonds in the market.