We grade Relief of Inclusion as below:
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R0 Indicates No Relief of Inclusions. Mainly this grade will come in VVS2 Clarity as pin-point inclusions don't have any Relief from Face-Up.
R1 Indicates Minor Relief of Inclusions. Mainly this grade will come in VS1 or VS2 Clarity. As inclusions are very less in number & generally have Minor Relief from Face-Up.
R2 Indicates Medium Relief of Inclusions. Mainly this grade will come in SI1 or SI2 Clarity. As inclusions will create Slight or Medium Relief or Impact from Face-Up.
R3 Indicates Major Relief of Inclusions. Mainly this grade will come in SI3 or I1 Clarity as Inclusion will look hard from Face-Up in most of the cases.
R4 Indicates Obvious Relief of Inclusions. Mainly this grade will come in I2, I3 or I4 Clarity as Inclusions will look extremely hard from Face-Up. Their Relief can also be seen Naked Eye.
R5 Indicates heavy Relief of Inclusions Mainly this grade will come in I3, I4, I5, I6 Clarity as Inclusions will look very heavy from face-up. Their Relief can also be seen Naked Eye.
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