Gemstones – Understanding the particular Four C’s

Diamond will be one of typically the world’s most appraised natural resources, not really to mention the most highly desired gemstones. Diamond are naturally made with an tremendous selection of characteristics, making every person diamond special. The various possible combos of the characteristics figure out the overall quality and associated with a diamonds. Recognizing the want for an widespread grading system, GIA, the Gemological Company of America, considered to be the world’s looked upon institute of gemological research, developed the Four C’s. Typically the Four C’s stand for Cut, Color, Quality, and Carat Pounds. This internationally accepted diamond grading program has revolutionized typically the diamond trade in addition to today is utilized by nearly every qualified in the sector and diamond enthusiasts across the planet. Because individual diamond vary so greatly in quality plus price, it is definitely vital for buyers to be common with the Four C’s at the same time. We’ve outlined basic principles of this grading technique below, to assist give consumers typically the resources they have to help make educated purchases.


The cut regarding a diamond may be one of the most significant of the Several C’s, and may enhance the overall high quality, value, and beauty of that diamond. There are numerous different cuts, each having a certain effect on typically the following three attributes:

* Brightness – the amount regarding light the precious stone displays

* Fireplace – the several colors in the array that a precious stone gives off

3. Scintillation – the particular sparkle and splendour that is developed when a gemstone is moved

In a well cut diamond, the sunshine which usually enters throughout the desk (the top level facet) and journeys through to typically the pavilion is after that reflected and distributed through the crown, creating an appealing effect. Unfortunately, found in a poorly cut diamond, some of the lighting leaks out your belt, which dramatically minimizes the diamond’s luster.

The quality associated with a diamond slice is based primarily about symmetry and gloss, plus the proportions of the table dimensions, crown angle, and pavilion depth to one another. Within most cases, a lot more facets a diamond has, the a lot more brilliance and sparkle it will certainly have. However the depth of the pavilion also offers a new huge impact in this. If the level of the stand is either too much or not sufficient, the light can be lost out the sides of the stone rather than being directed with the top.

The brilliant circular cut diamond is by far the most common in the diamond cuts, although many others are gaining popularity. The outstanding round cut was basically designed specifically for use on diamonds, along with it’s 57-58 well proportioned facets, it’s brilliance and even sparkle is more noticeable than on the subject of most cuts. However with so several variations of diamonds cuts, many combos of proportions are usually possible, directly affecting beauty of a diamond, and for that reason also the value.


Comparable to the slice of the diamond, it’s color will either increase or lower it’s sparkle in addition to fire. Obviously, diamond with less colour will reflect even more light than individuals with a light yellow or brown hue. This, along with the fact that mother nature provides us together with less of these colorless diamond, tends to make them more useful and sought right after.

Yet again seeing typically the need for a good universal system, typically the GIA developed typically the diamond color grading scale, using typically the letters D-Z, which usually is most generally accepted today. Diamond are graded under extremely precise viewing circumstances and often in comparison to diamond of some sort of known color grade to assure very few differences in just a colour grade. A precious stone absent of color is grade ‘D’ and the even more color that will be found in the diamonds, the further together the alphabet it’s grade travels. Precious stone with grade ‘Z’ will have a mild yellow or darkish tint, and therefore will not reflect light and a colorless diamonds. Fancy colored gemstone, although most will be irradiated and colour enhanced, tend not to stick to this grading scale, and often are definitely more valuable because when naturally colored they are extremely rare.

The most common color grades are usually G through My partner and i, as they usually are more abundant in nature, and much a lot more affordable. Although diamonds of the grades carry out have a hint associated with color, it usually isn’t visible in order to the naked and even untrained eye. Furthermore, diamond graded M through M might have a very weak hue of yellow hue, but with the perfect jewelry piece in addition to diamond cut, typically the color may look less obvious (although it barely is to begin with). White gold or platinum or platinum adjustments usually require better grade diamond, while a yellow gold setting takes aside from the orange tint of a lower grade precious stone.

Most jewelers employ the GIA Precious stone Color Grading Size [out], and even it’s recommended for customers to do the particular same to raised realize the subtle variations in color a gemstone may have, and even to better assess the quality and even value of some sort of diamond.


According to the GIA, “diamond clarity appertains to the absence of inside inclusions or alternative blemishes. ” Associated with all diamond characteristics, clarity may be the a single with the very best impact on some sort of diamond’s value, since flawless diamond are usually so rare. Normal diamond are set up deep within the earth under extreme stress, so it’s not really surprising that almost all diamond have minor flaws. You will discover two types regarding flaws – blemishes and inclusions. Spots are external defects on the surface associated with a diamond, and include chips, nicks, and scratches, nearly all of which occur in the cutting process. Blemishes are internal imperfections such as bubbles, cracks, or additional minerals within typically the center in the precious stone.

GIA developed an universal diamond clarity grading scale containing of 11 marks. Diamond are ranked under 10x magnifying, so most of the flaws that affect the clarity grade are hardly visible to typically the naked eye. Inside of addition to the number, size, in addition to severity of the inclusions, the position and color of typically the inclusion are furthermore considered when grading the clarity associated with a diamond. Due to the fact no two gemstone are alike, typically the characteristics of a diamond and really inclusions help it become entirely unique, and are at times used, like finger prints, to identify individual diamond.

The almost all rare clarity levels are F or perhaps FL (flawless) plus IF (internally flawless), diamond of such levels are much even more valuable because these people never occur since often in characteristics. The next greatest clarity grades will be VVS (very, extremely slightly included) and VS (very slightly included). These diamond are more common and sought following because they usually are cheaper than exquisite diamond yet even now have very minor inclusions, almost all of which often can only always be seen under zoom with a skilled grader. Likely the nearly all common clarity quality is SI (slightly included). Diamond of this clarity are still considered “eye-clean” in addition to provide a cheap alternate. The lowest clarity grade, I (imperfect), has more visible inclusions which might affect the splendour of the diamond.

GIA defines their particular clarity grading range the following:

* Perfect (FL)

No blemishes or blemishes are visible to a new skilled grader working with 10x magnification

5. Internally Flawless (IF)

No inclusions plus only minor imperfections are visible to a skilled grader employing 10x magnification

* Very, Very Somewhat Included (VVS1 and even VVS2)

Inclusions are difficult for a new skilled grader to be able to see under 10x magnification

* Quite Slightly Included (VS1 and VS2)

Fillings are clearly obvious under 10x magnifying but can be indicated as slight

2. Slightly Included (SI1 and SI2)

Inclusions are noticeable to be able to a skilled grader using 10x magnifying

* Imperfect (I1, I2, and I3)

Inclusions are obvious under 10x magnification and may influence transparency and brilliance

Carat Weight

The pounds of a diamond is measured found in carats, with 1 carat equaling 2 hundred milligrams or a fifth gram. You may also hear the particular term “points” used when speaking associated with diamond weight. One particular carat is divided up into 100 points, so a new 1/4 carat diamond can be referred to as a ’25 point diamond. ‘

Although carat pounds can also be used to measure gemstones, that is slightly even more complicated, since precious stone types may have got different densities. Opal Due to the fact of this, some sort of round 6mm Alexandrite may have a karat weight of just one. 30ct whereas a rounded 6mm Citrine might only be 0. 70ct.

When composed, carat is normally abbreviated as ‘ct. ‘ In a jewelry piece with several diamond, typically the abbreviation used is ‘ct TW’ that means carat total excess weight (the sum of the particular carat weights intended for each diamond), though that’s usually reduced to ‘ctw. ‘ The value of such a precious jewelry piece may end up being less than the price of a comparable item of typically the same carat weight with only a single diamond. Diamond solitaires are much extra rare, and as a result, a 1ct Gemstone Solitaire ring may be worth a lot more than the similar 1ctw engagement ring with many smaller diamond.

Similarly, diamond regarding the same sizing and carat fat might not exactly hold the particular same value, mainly because one may possess better clarity or perhaps color. The reduce of a diamonds also affects it’s carat and value because some gemstone cuts hold a lot more volume than other folks.

The Four C’s as outlined above would be the main characteristics which affect typically the value of a diamond. However of similar importance is that they sort the diamond’s unique beauty, and standard the grading program utilized to classify the particular quality of personal diamond. We suggest for consumers to teach themselves about gemstone grading and other related jewelry info.