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RRE Grading System

Learn More About Diamonds

The RRE Grading System is our in-house grading system, developed specifically to provide in-depth detail and total transparency. The RRE employs below parameters to grade diamonds based on clarity, color, fancy, cut and polish.

Shape

Diamonds do not show all of their beauty as rough stones; instead, they must be cut and polished to exhibit the characteristic fire and brilliance that diamond gemstones are known for. Diamonds are cut into a variety of shapes that are generally designed to accentuate these features.

RRajesh Exports - Round Shape Stone
Round
RRajesh Exports - Cushion Shape Stone
Cushion
RRajesh Exports - Pear Shape Stone
Pear
RRajesh Exports - Marquise Shape Stone
Marquise
RRajesh Exports - Heart Shape Stone
Heart
RRajesh Exports - Oval Shape Stone
Oval
RRajesh Exports - Emerald Shape Stone
Emerald
RRajesh Exports - Princess Shape Stone
Princess
RRajesh Exports - Radiant Shape Stone
Radiant
RRajesh Exports - Asscher Shape Stone
Asscher
Carat
RRajesh Exports - 0.25 Carat Stone RRajesh Exports - 0.50 Carat Stone RRajesh Exports - 1.00 Carat Stone RRajesh Exports - 1.50 Carat Stone RRajesh Exports - 2.00 Carat Stone RRajesh Exports - 2.50 Carat Stone RRajesh Exports - 3.00 Carat Stone RRajesh Exports - 4.00 Carat Stone RRajesh Exports - 5.00 Carat Stone
Clarity

Diamonds are graded for clarity on the basis of internal and external imperfections present. We grade the diamonds based on below parameter based on clarity.

RRajesh Exports - FL Clarity Stone RRajesh Exports - IF Clarity Stone RRajesh Exports - VVS1,VVS2 Clarity Stone RRajesh Exports - VS1,VS2 Clarity Stone RRajesh Exports - SI1,SI2,SI3 Clarity Stone RRajesh Exports - I1,I2,I3 Clarity Stone
Color

The diamonds are also graded based on color. We are grading the diamonds in to parameter of White, LC (Light Color-Off White) and LB (Light Brown) based on color. The diamond which has red color shine can be graded as LB. LC grade includes yellow shade diamonds. As a rule, yellower the stone, lesser the value it has as compared to colorless diamonds.

RRajesh Exports - D,E,F Color Stone RRajesh Exports - G,H,I,J Color Stone RRajesh Exports - K,L,M Color Stone RRajesh Exports - N,O,P,Q,R Color Stone RRajesh Exports - S,T,U,V,W,X,Y,Z Color Stone RRajesh Exports - Fancy Color Stone

Fancy Color

Pink Blue Red Green Purple Orange Violet Gray Black Brown Champagne Cognac Chameleon White

Fancy Color Intensity

Faint Very Light Light Fancy Light Fancy Fancy Dark Fancy Intense Fancy Vivid Fancy Deep

Fancy Color Overtone

None Brownish Greenish Yellowish Pinkish Purplish Grayish Orangey Reddish Bluish

Shade

Symbol N B1 B2 B3 MT1 MT2 MT3 GY1 GY2 GY3
Description NONE VERY LIGHT BROWN LIGHT BROWN MEDIUM BROWN VERY LIGHT MIX TINGE LIGHT MIX TINGE MEDIUM MIX TINGE VERY LIGHT GREY LIGHT GREY MEDIUM GREY
Cut

Cut refers to the quality of the proportions, polish and symmetry of a diamond. Of the 4C's, the cut is the aspect most directly influenced by man, whereas the other three C’s are influenced by nature. Hence here the expertise and skills of manufacturing comes into the picture. 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 has below grade.

RRajesh Exports - Diamond Cut
Symbol EX VG GD FR PR
Description Excellent Very Good Good Fair Poor
Polish

Polish and symmetry are two other important aspects of the cut. Polish describes the smoothness of the diamond's facets (surface conditions), and symmetry refers to alignment of the facets (the exactness of shape and placement of the facets). 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. Here also diamonds are graded as cut grade parameters like excellent, very good, good, fair and poor.

Symbol EX VG GD FR PR
Description Excellent Very Good Good Fair Poor
Symmetry
Symbol EX VG GD FR PR
Description Excellent Very Good Good Fair Poor
Fluorescence
Symbol NON VSLT SLT FNT MED STG VSTG
Description NONE VERY SLIGHT SLIGHT FAINT MEDIUM STRONG VERY STRONG
Table White Inclusion
Symbol N TP1 TP2 TP3 TF1 TF2 TF3 TCL1 TCL2 TCL3 TCR1 TCR2 TCR3 OTR
Description NONE MINUTE PIN POINT SMALL PIN POINT MEDIUM PIN POINT SMALL FEATHER MEDIUM FEATHER HEAVY FEATHER SMALL CLOUD MEDIUM CLOUD HEAVY CLOUD SMALL CRYSTAL MEDIUM CRYSTAL HEAVY CRYSTAL OTHER INCLUSION
Side White Inclusion
Symbol N SP1 SP2 SP3 SF1 SF2 SF3 SCL1 SCL2 SCL3 SCR1 SCR2 SCR3 OTR
Description NONE MINUTE PIN POINT SMALL PIN POINT MEDIUM PIN POINT SMALL FEATHER MEDIUM FEATHER HEAVY FEATHER SMALL CLOUD MEDIUM CLOUD HEAVY CLOUD SMALL CRYSTAL MEDIUM CRYSTAL HEAVY CRYSTAL OTHER INCLUSION
Table Black Inclusion
Symbol NB TBP1 TBP2 TBP3 TBCR1 TBCR2 TBCR3
Description NO BLACK MINUTE PIN POINT SMALL PIN POINT MEDIUM PIN POINT SMALL CRYSTAL MEDIUM CRYSTAL HEAVY CRYSTAL
Side Black Inclusion
Symbol NB SBP1 SBP2 SBP3 SBCR1 SBCR2 SBCR3
Description NO BLACK MINUTE PIN POINT SMALL PIN POINT MEDIUM PIN POINT SMALL CRYSTAL MEDIUM CRYSTAL HEAVY CRYSTAL
Table Open Inclusion
Symbol N TO1 TO2 TO3
Description No Open Small Table Open Medium Table Open Heavy Table Open
Crown Open Inclusion
Symbol N CO1 CO2 CO3
Description No Open Small Crown Open Medium Crown Open Heavy Crown Open
Pavilion Open Inclusion
Symbol N PO1 PO2 PO3
Description No Open Small Pavilion Open Medium Pavilion Open Heavy Pavilion Open
Girdle Thickness
Symbol ETN VTN THN MED STK THK VTK ETK
Description Extremely Thin Very Thin Thin Medium Slightly Thick Thick Very Thick Extremely Thick
Culet
Symbol NON VSM SML MED SLG LRG VLG ELG
Description NONE VERY SMALL SMALL MEDIUM Slightly Large Large Very Large Extremely Large
Heart & Arrow
Symbol N EX VG
Description None 100% H&A ABOVE 80%
Luster
Symbol EX VG GD
Description Excellent Very Good Good
Milky
Symbol N M0 M1 M2 M3
Description NONE VERY LIGHT MILKY LIGHT MILKY MEDIUM MILKY HEAVY MILKY
Eye Clean
Symbol E0 E1 E2 N
Description 100% EYE CLEAN ABOVE 85% EYE CLEAN ABOVE 70% EYE CLEAN NO EYE CLEAN
Extra Facet
Symbol N P1 P2 P3 C1 C2 C3
Description NONE PAVILION SMALL PAVILION MEDIUM PAVILION MAJOR CROWN SMALL CROWN MEDIUM CROWN MAJOR
RED SPOT Inclusion
Symbol N TR1 TR2 SR1 SR2
Description NONE TABLE SMALL TABLE MEDIUM SIDE SMALL SIDE MEDIUM
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