Our Grading

How does the Diamond
Grading System Work ?

Our Grading

Diamond Shape

Does your heart sing to the tune of light that reflects out from a round brilliant cut diamond? Perhaps your contemporary sensibility attracts you to the princess cut, which is square in shape, but brilliant like the round? Or do you love the elegance of a marquise-shaped diamond that marks your presence everywhere? Each diamond shape has its own attribute. Be it a pear shape, oval shape, heart shape, cushion, emerald, asscher or radiant, we have it all. But shape preference is primarily a subjective statement of style that reflects the personality of the woman who wears it.


Though colors fill life into life, in diamonds, the case is just the opposite. Pick up any color from the shade card and you will get the similar shade in diamonds too. But it is very difficult to get your hands on the one you desire the most. Colorless diamonds are in greater demand than the one’s available in the shades of yellow. The thumb rule is - the whiter the diamond, the better it is.

The yellow color in diamonds comes from the traces of nitrogen found in them. One part in a million will cause a yellow tint to appear in the K color of diamonds. As a rule, yellower the stone, lesser the value it has. There's a good reason behind it. Yellower the stone, lesser the sharpness and so, it appears dull. A whiter stone allows greater amounts of light to pass through it, making it sparkle and shine. With the exception of a few natural fancy colors like blue, pink, purple or red, the more natural color a diamond has, the lesser it is worth compared to its counterpart colorless diamonds.


Years ago, carat weight was considered to be the defining characteristic of a diamond. Cut is probably the most important and most challenging of the four Cs to understand. The brilliance of a diamond depends significantly on its cut. Gemologists all over the world consider Cut quality to be the most important diamond characteristic because even if a diamond has a perfect color and clarity, a diamond with a poor cut will have reduced brilliance. cut is not a shape of the diamond but it refers to the quality of the proportion of the angle with which the diamonds are cut to perfection. When a diamond is cut to good proportions, light is reflected from one facet to another and is dispersed through the top of the diamond.


Cut Grades EX VG G F
Description Excellent Cut Very Good Cut Good Cut Fair Cut



Polish Grades EX VG G F
Description Excellent Polish Very Good Polish Good Polish Fair Polish


Symmetry is an important element of diamond finish. Symmetry refers to the exactness of the shape and arrangement of facets. This includes naturals, misshapen and extra facets, off-center culets and tables, wavy and out-of-round girdles, misalignment of crown and pavilion facets. To the unaided eye, finish features usually have little effect on appearance; they are like pin point inclusions. The importance of symmetry is of lesser consequence in diamonds that have lower clarity grades whereas, it is more important in diamonds that have high clarity grades.


Symmetry Grades EX VG G F
Description Excellent Symmetry Very Good Symmetry Good Symmetry Fair Symmetry

Heart & Arrow

The best proportionate round diamonds, with perfect angles, will make it the most beautiful diamond, called the “Hearts and Arrows” (H&A). H&A are even better than the excellent cut diamonds. H&A cut commands a premium price in the market. We grade H&A diamonds with extra specification and do not include them in the regular cut criteria.

Description Excellent H&A (100%) Very Good H&A (80%) Not a H&A

Fluorescence Intensity (FI)

Fluorescence, when exposed to ultraviolet radiations, glows if it carries the characteristic of fluorescence.


Fluorescence Grades N FNT MED STG VSG
Description None FI Faint FI Medium FI Strong FI Very Strong FI


A diamond is the most desired element in the world. Luster is one of its two most valued attributes, brilliance being the other one. It is one of the most important parameters of grading diamonds. It describes about the fire, sparkle and scintillation of the diamond. We at Manee, grade diamonds depending upon the light reflected from it on the basis of two levels of luster:

Level of Brilliance:
Luster Grades EX VG G F
Description Excellent Luster Very Good Luster Good Luster Fair Luster

Milkiness is an effect that we get looking at the diamonds due to some inclusions like clouds present in the diamond. These avoid reflection of light from the diamond. Such milky diamonds are further classified depending upon the magnitude of milkiness:

Level of Milkiness:
Milky Grades ML-1 ML-2 ML-3
Description Slightly Milky Medium Milky Heavy Milky


Black Inclusion (Natts)

Black Inclusions or Natts in general, are the inclusions that are found in the diamonds.

We grade diamonds on the basis of black inclusions as compared to the total inclusions by determining the following categories:
Black Inclusion N B_PP B-1 B-2
Description None Pin Point Black Inclusion Minor Black Inclusion Medium Black Inclusion

We specify two part of black inclusion

(i) Table black inclusion
(ii) Side black inclusion

Other Inclusion

We grade diamonds on the basis of five types of inclusions such as,Pin Points (PP), Clouds (CLD), Crystals (CRL), Feathers (FR) and Spreaded (SPR).

Pin Point (PP): It is a very small crystal that looks like a tiny dot while using a 10x loupe. Pin Points are generally white in color but occasionally they can be dark also.

Clouds (CLD) : A cloud consists of many tightly grouped pin points. Some clouds look like a light haze, while others are dense and almost impossible to see through the naked eye.

Crystal (CRL): It is a mineral crystal contained in some diamonds. A crystal can be of almost any size, colored or colorless, and can appear alone or in groups.

Feather (FR): A feather is a general term for any break in the diamond.

Spreaded (SPR): A spreaded inclusion appears when the feather inclusions are in greater number, spread across and not grouped together.

Other Inclusion N PP-1 PP-2 CLR-1 CLR-2 SPR-1 SPR-2 SPR-3 FR-1 FR-2 FR-3 CLD-1 CLD-2 CLD-3
Description None Pin Point Minor Inclusion Pin Point Medium Inclusion Crystal Minor Inclusion Crystal Medium Inclusion Spreaded Minor Inclusion Spreaded Medium Inclusion Spreaded Heavy Inclusion Feather Minor Inclusion Feather Medium Inclusion Feather Heavy Inclusion Cloud Minor Inclusion Cloud Medium Inclusion Cloud Heavy Inclusion

We specify two part of other inclusion

(i) Table other inclusion
(ii) Side other inclusion

Open Inclusion

Open inclusions are the inclusions that are on the surface of the diamonds. We grade diamonds with open inclusions on the basis of five types that are mentioned below:
Other Inclusion N HL SM MD HV
Description None Hair Line Open Inclusion Small Open Inclusion Medium Open Inclusion Heavy Open Inclusion

We specify two part of open inclusion

(i) Table open inclusion
(ii) Side open inclusion

Extra Facet

Extra facet is that extra facet placed on the normal facets of the diamonds without considering the symmetry of the diamond. These facets are additional to those required for making the diamond a brilliant cut diamond.

Extra Facet Grade N P_SM P_MD P_MJ P_HV C_SM C_MD T_SM
Description None Pavilion Small Pavilion Medium Pavilion Major Pavilion Heavy Crown Small Crown Medium Table Small

Inclusion Details