Diamond: Quality, Grading, Value and Certification
- Vardhaman Gems
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Know diamond grading before buying
Some laboratories provide certifications for quality and grading of diamonds that determine the value of a diamond. The number of new consumers is growing very fast all over the world. Non-trustworthy sellers may take a chance and cheat these new customers. This article is written with a purpose to educate them to get the full value for their money.
India was producing much but consuming less in recent past but Indians are now consuming a huge quantity of diamonds. How to evaluate and buy the diamonds and diamond jewelry?
It is better to go to a trustworthy Jewelers. It is also advisable to know about the grading of diamonds to determine its value before buying a diamond or a diamond jewelry. People prefer investing in diamonds. It is extremely necessary to know the realistic value along with quality and grading of the purchased diamonds or diamond jewelry.
A Diamond is forever - De Beers
Diamond cut history
Value of diamond is dependent on four C's
Certification bodies use four "c"s as a parameter for grading quality of the diamond. These four are also a parameter in determining the value of a diamond and diamond jewelry.
3. clarity and
4. carat weight.
Cut: There are different types of cut e.g. Flat cut (parav and polki, rose cut) Michael cut, single cut, brilliant or double cut etc.There are also different shapes such as round, square, octagon, oval, marquise and various fancy shapes such as pentagon, alphabets, star etc. Beads, drops, briolettes are also available in diamond.
Diamond cuts are certified as excellent (the best), very good, good and fair (cut quality in descending order).
Color: Diamonds are found mainly in colors ranging from white and brown or yellow. Some fancy colors such as green, blue, pink, red are found rarely in nature. These natural fancy colors fetch enormous price depending upon its quality.
Fancy colors are also obtained by treating diamonds. These artificially colored diamonds are not expensive.
As per international standard of diamond grading, it is graded in 'D' to 'P' colors. The best white color is graded as D and then E, F, G, H etc in descending order. Color grade from D to H is considered as white. Grade I, J, K, and L represent shades light to medium brown or yellow. M, N, O, P grades represent deep brown or yellow color. Grades from 'P' to 'Z' is for fancy yellow, golden, orange or brown. It is difficult for laymen to determine minute differences in shades. Only experts can determine those variations in color.
3. Clarity: Diamonds are graded for clarity as IF (internally flawless), V VS-1, V VS-2 (very very small inclusions), VS-1 VS-2 (very small inclusions) and SI-1, SI-2, and SI-3.The purest is IF and the least purity has a gradation of SI-3.
Fluorescence is one of the inclusions of diamond which lessens brightness or glitter of a diamond. Diamond grading certificates mention this inclusion separately as fluorescent or non-fluorescent. Fluorescent diamond has a lesser value.
4.Carat weight: Diamonds are found in various sizes. it is weighed in carats. One carat is equal to 200 mg. Further, a carat is divided into 100 parts and this part is called cent. One carat is equal to 100 cents. In general more the weight more the price, a lesser weight fetches a lesser price.
Comparisons of Diamond clarity grades
Guide to Diamond color
There are synthetic and treated diamonds. Synthetic diamonds have very low value.Treated diamonds also have a lesser value.
More and more people buying diamonds are dependent on certificates. However, they generally do not know about the standards that determine the value of diamonds. The most painful are unethical practices of many certifying agencies.There is no system of authentication of certifying agencies. Many laboratories grade diamonds in genuinely. Some traders use these in-genuine certificates to cheat their customers.
Just one grade up in color enhances value by ten to fifteen percent on an average. Similar things happen with clarity. If a certifying laboratory grades an H color diamond wrongly to G and VS2 purity to VS1, it will enhance price by 25 to 30 percent or so.
GIA certification is much better than others according to the Jewelers, I talked about.To the best of my knowledge, they strictly adhere to the standard. A good news is that Bureau of Indian Standards (BIS) Is now coming to grade diamonds.
Now onward, whenever to go to buy a diamond refer to above-mentioned features to get the full value of your money.
( This article is written for laymen / general customers. This is an attempt to make aware the consumers. It is not meant for technical purposes. Please consult your adviser or a trustworthy jeweler before buying diamonds.Please feel free to mail me at firstname.lastname@example.org for any relevant information).
Learn 4Cs of Diamond grading by GIA
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