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The Savuri Diamond Grading System (SDGS) is our in-house grading system, developed specifically to provide in-depth detail and total transparency. The SDGS employs 16 parameters to grade diamonds. Pricing is not consistent, logical and accurate in making the online diamond buying experience the smoothest possible for our patrons. The SDGS chart explains the grading parameters down to the smallest detail and is listed under remarks on our online stock.

It has often been said that "Diamonds are Forever." The timeless appeal of a diamond is a testament to its durability, beauty, rarity and strength. It is a fitting symbol of love and affection. Let us offer you and your dear one’s some guidelines to help you choose the perfect diamond for your exquisite engagement ring.
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.
SDGS following below parameters for Pricing:
Carat Weight
Size +0.30 +0.40 +0.50 +0.70 +0.90 +1.00 +1.50 +2.00 +2.50 +3.00 +4.00
Size Range 0.30 to 0.399 0.40 to 0.499 0.50 to 0.699 0.70 to 0.899 0.90 to 0.999 1.00 to 1.499 1.50 to 1.999 2.00 to 2.499 2.50 to 2.999 3.00 to 3.999 4.00 to 10.999
Clarity
The clarity of a diamond is based on the number, location, size and type of inclusions found in the stone. An inclusion is an imperfection or trace mineral in the stone that is visible under the magnification of a Grader's loupe. The fewer the inclusions, the clearer, brilliant and expensive the diamond will be. A "flawless" diamond is the one that has no inclusions and is extremely rare and valuable.

The clarity of a diamond refers to its inclusions, which are some black, grey or white marks that internally flaw the diamond’s structure. These small imperfections are graded under 10x magnifying glass loupe, which is standard to grade a diamond’s clarity. A diamond, with fewer inclusions, is both rare and more desired which also makes it more expensive. A diamond with a purity of IF to VS2 will sparkle with great intensity whereas diamonds with a purity ranging between SI1 and SI2 will only sparkle. Diamonds between I1 and I3 will lack any sparkle and life and its inclusions will be noticeable to the naked eye. All conditions being constant, lesser the inclusions, greater the life and greater the sparkle of a diamond. Thus, the more will one pay for it.

We grade diamonds on the basis of PURITY by determining following categories:
Purity FL IF VVS1 VVS2 VS1+ VS1 VS2+ VS2 SI1+ SI1 SI1- SI2+ SI2 SI2- SI3+ SI3 SI3- I1+ I1 I1-
Description Flawless Inernally Flawless Very Very Slightly Included-1 Very Very Slightly Included-2 Slightly Better than VS-1 Very Slightly Included-1 Slightly Better than VS-2 Very Slightly Included-2 Slightly Better than SI-1 Slightly Included-1 Slightly lower than SI-1 Slightly Better than SI-2 Slightly Included-2 Slightly lower than SI-2 Slightly better than SI-3 Slightly Included-3 Slightly lower than SI-3 Slightly better than I-1 Included -1 Slightly lower than I-1
Additional comment for Certified stone.
1. If our (SDGS) Clarity grading is VS-2 and laboratory gives us SI-1 certificate, we have to specify the, exclusive clarity in the comment column. 2.If our (SDGS) clarity grading is SI-1 and the laboratory gives us a VS-2 certificate, we have to specify the upgraded clarity in the comment column.
3.If our (SDGS) clarity grading is SI-1, but because si-1 has different inclusions, maybe some SI-1 inclusion is on the upside, some is hidden under the downside, so we have specify the EYE CLEAN in the comment column also for clients who wants from table side, the inclusion of SI-1 can be seen or cannot be seen.
Color
Shade D E F G H I J K L M
Image D E F G H I J K L M
Though colors fill life into life, in white color diamonds not fancy color 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.

We grade diamonds on the basis of COLOR by determining following categories:
SDGS Color Grades D+ D D- E+ E E- F+ F F- G+ G G- H+ H H- I+ I I- J+ J J- K+ K K- L+ L L- M+ M M- N to R S to Z
Parameters Colorless Near Colorless Faint Very Light Light
Additional comment for Certified stone.
1. If our (SDGS) color grading is G and the laboratory gives us H certificate, we have to specify exclusive color in the comment column.
2. If our (SDGS) color grading is H and the laboratory gives us G certificate, we have to specify upgraded color in the comment column.
3. And also we will specify our diamonds which have brown tinge or brown in shade in comment column to notify the clients what is the real face of the diamond itself.
Cut
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.

We grade diamonds on the basis of CUT by determining following categories:
SDGS Cut Grades EX VG G F
Description Excellent Cut Very Good Cut Good Cut Fair Cut
Polish
We grade diamonds on the basis of POLISH by determining following categories:
SDGS Polish Grades EX VG G F
Description Excellent Polish Very Good Polish Good Polish Fair Polish
Symmetry
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.

We grade diamonds on the basis of SYMMETRY by determining following categories:
SDGS Symmetry Grades EX VG G F
Description Excellent Symmetry Very Good Symmetry Good Symmetry Fair Symmetry
Heart & Arrows
The best proportionate round diamonds, with perfect angles, will make it the most beautiful diamond, called the “Hearts and Arrows” (H&A). If a diamond cut is already achieving EXCELLENT, then H&A are even better than the regular excellent in 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.

We grade diamonds on the basis of H&A by determining following categories:
SDGS H&A Grades EX VG NONE
Description Excellent H&A (100%) Very Good H&A (80%) Not a H&A
Luster
A diamond is the most desired gift in the world. Luster is one of the most important parameters of grading diamonds. It describes about the fire, sparkle and scintillation of the diamond. We at SDGS, grade diamonds depending upon the light reflected from it on the basis of two levels of luster:

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

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:
SDGS Milky Grades Ml-1 Ml-2 Ml-3
Description Slightly Milky Medium Milky Heavy Milky
Fluorescence
Fluorescence, when exposed to ultraviolet radiations, glows if it carries the characteristic of fluorescence.

We at SDGS, grade diamonds on the basis of the level of fluorescence present in it:
SDGS Fluorescence Grades N FNT MED STG VSG
Description None Faint Medium Strong Very Strong
Black Inclusion
Black Inclusions in general, are one of 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:
SDGS Black Inclusion N Blk_Pp Blk Blk
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.

SDGS Other Inclusion N Pp-1 Pp-2 Xlt-1 Xlt-2 Spr-1 Spr-2 Spr-3 Ftr-1 Ftr-2 Ftr-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, such as the hole on the surface of diamond. We at SDGS, grade diamonds with open inclusions on the basis of five types that are mentioned below:
SDGS Open Inclusion N Hl S M H
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.
SDGS Extra Facet Grade N P_S P_M P_Mr P_H C_S C_M T_S
Description None Pavilion Small Pavilion Medium Pavilion Major Pavilion Heavy Crown Small Crown Medium Table Small
Here’s an extra specification for the internal graining in the comment column.
(i)   Slight Internal Graining
(ii)   Heavy Internal Graining