Clarity is measured visually and according to standards.
You can review the guidelines, below.
If by 'you' you mean 'U', and you're query is about clarity and not colour, it is possible that 'U' indicates unenhanced. Unenhanced diamonds are more valuable than enhanced diamonds.
AAA clarity is not a recognized rating for diamonds. The standard clarity scale for diamonds ranges from Flawless (no inclusions) to Included (visible inclusions). AAA is not a term used in the diamond industry to describe clarity.
Not all diamonds are clear. Take your diamond to a jewelery store or a gemologist and ask for an evaluation of your diamonds. The lack of clarity can affect its value.
In diamond grading, "J" clarity refers to diamonds that have noticeable inclusions when viewed under 10x magnification. These inclusions may affect the diamond's brilliance and transparency but might not be visible to the naked eye. J clarity diamonds are considered lower on the clarity scale, but they can still be a good choice for those looking to balance quality and budget.
Diamonds rated J-K display this rank in terms of colour, which indicates that they are slightly yellow.This rating does not reflect clarity, which is rated using I, VVS, VS, F or IF. These terms mean, in sequence:IncludedVery Very SlightVery SlightFlawlessInternally FlawlessThe first three are generally followed by a number no grater than three, which represents the number of visible flaws under a 10X magnifier. Internally flawless and flawless are the highest rating for clarity.
Diamonds are measured by carat weight, clarity, colour and excellence of the cut, some of which are named.
The clarity of the response required no further inquiry. Diamonds and wine are judged by their clarity.
Diamonds are rated according to the colour, clarity, carat weight and cut.
Cut diamonds are valued by their cut, clarity, carat weight and colour.
Debeers diamonds are the standard by which most diamonds are measured.
AAA clarity is not a recognized rating for diamonds. The standard clarity scale for diamonds ranges from Flawless (no inclusions) to Included (visible inclusions). AAA is not a term used in the diamond industry to describe clarity.
If by 'you' you mean 'U', and you're query is about clarity and not colour, it is possible that 'U' indicates unenhanced. Unenhanced diamonds are more valuable than enhanced diamonds.
IMP1 is not an acronym commonly association with diamonds.
Diamonds are valued by cut, colour, clarity and colour. Without those details, pricing 19 diamonds is not possible.
Clarity enhanced diamonds are real, mined diamonds that have had their clarity/quality improved by cleaning and cloaking any visible imperfections in the diamond. Clarity enhanced diamonds are lower in price than 100% natural diamonds and therefore for every given carat weight and quality, the price will be lower. Clarity enhanced diamonds are graded after the enhancement and therefore if the diamond was originally F/SI1 and is now F/VS2, it will be priced lower as if it were still F/SI1, however will look like F/VS2. (see related link)
Diamonds are graded according to clarity, colour, cut and carat weight, basically in that order of priority.
Althoguh clarity or color enhanced diamonds are "safe" to buy, they should be dramatically discounted from the price of natural diamonds.