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You're asking about two of the four Cs in diamond grading: clarity and colour.

Clarity

The numbers are self-explanatory. The initials are:

  • VS - very slight
  • SI - slight inclusion

You can read more, below.

Colour

The colours you list are in the second tier of desirable colours for 'colourless' diamonds, D through H, being the most desirable.

You can read more, below.

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Q: What does vs1 vs2 si1 and si2 mean in clarity grading and what does ijklmno in colour grading mean?
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Related questions

What does vs mean in diamond?

In grading a diamond's clarity, VS indicates Very Slight.


What does vs mean in diamond clarity?

The full form of vs is very slight.You can read more about GIA clarity grading systems, below, which include the vs assignment in context.


What does Ef mean in diamond grading or colouring?

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.


What does clarity HI clarity I2-I3 mean in a diamond?

Clarity H-I sounds more like the colour grade. Clarity I2-i3 means that there are two or three visible inclusions in the diamond. This is the lowest clarity grade for gem-stone quality diamonds.


What is you clarity on a diamond?

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.


What does clarity mean in a diamond?

Clarity for a diamond describes the number and amount of flaws or inclusions in a stone. Perfect clarity -- the lack of any flaws or inclusions -- is called Flawless, or Internally Flawless, which is the highest clarity grade.


What does pf mean in coin grading?

Proof


Why is it useful to know the mean average?

when you are grading you can use the mean as an average.


What does lack clarity mean?

If something "lacks clarity" it means it is confusing or the purpose is unclear.


What does claritie mean?

If something "lacks clarity" it means it is confusing or the purpose is unclear.


What does MS mean in coin grading?

Mint status


What does clarity mean in drama?

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