Coin grading is a term used to refer to the process of determining the condition or quality of a coin, and its full identity. It is essential to know what the grade is of a particular coin, because, as a general matter, the higher the grade of a coin, the higher its numismatic value.
Coins are graded on a 0-70 point scale devised by Dr William Shelby. The details can be found in the Official A.N.A. Grading Standards for United States Coins published by the American Numismatic Association (ANA). Under this method of grading, the higher the point scale accorded a particular coin, the better its quality.
The process of grading a coin is partly subjective and partly an art, rather than a true science. Accurate grading requires many years of skill and experience. However, determining an approximate grade is possible for even the novice coin collector.
The basic point scales that define coin grades, are as follows:
1. Mint State Perfect Uncirculated (MS-70)
Mint state uncirculated coin in perfect condition, showing no traces of wear, and no blemishes, scratches, handling or contact with other coins. The best quality coin possible.
2. Choice (Gem) Uncirculated (MS-65-69)
An above average uncirculated coin which retains all of the original mint brilliance or luster, and has a very few contact marks on the surface or rim, which are barely noticeable.
3. Brilliant Uncirculated or BU (MS-60-64)
An uncirculated coin having no traces of wear but which has a few contact marks, surface spotting or lacks some of its original luster.
4. Choice About Uncirculated (AU-55 & 58)
A coin having very light wear on only the highest points of the design but no other defects and with most of its luster remaining.
5. About Uncirculated (AU-50)
Coin has evidence of light wear on many of the high points but at least half of the mint luster is still present.
6. Extremely Fine (EF-40)
The coin design is lightly worn in most places but all the features remain sharp and well defined.
7. Choice Very Fine (VF-30)
Light even wear on the surface and highest parts of the design but most major features and the lettering are sharp.
8. Very Fine (VF-20)
Minor features such as some of the finer hair detail, feathers, etc. will be moderately worn. Shows moderate wear on high points of design. All major details are clear.
9. Fine (F-12)
Moderate to considerable even wear over most features and the lettering. A lot of the details are worn through but you can still see a good deal of the design.
10. Very Good (VG-8)
The entire design is weak, but a few details are visible. Well worn throughout but coin rims still visible.
11. Good (G-4)
Heavily worn but design and legend still visible although quite weak in spots. Many details are gone.
12. About Good (AG-3)
Very heavily worn with portions of lettering, date and legends worn smooth and barely discernable.
Have fun collecting your Perfect Coins!
Robert L Taylor, JD
Copyright 2006 Robert L Taylor, JD
Grading System In Schools
The system was developed for assessment of the clarity of the diamonds used in jewelry. While in the progress of development the clarity grading system was called 'diamond grading and evaluation appraisal'. The key aspects of the grading system were - color, clarity and make (quality of the cut, polish and finish).
Even though there were some other grading systems available for diamonds, there was no single system that was used as a standard across traders. Some of the classifications that were used before the formal development of the GIA clarity grading system were terms like Flawless, VVS, VS, SI and I.
But these classifications were not precise and clear and therefore it was very difficult to classify a diamond in one of these unequivocally.
In the early 1953, after the completion of the GIA clarity grading system, it was formally announced and made public.This initial system had nine grades and these included - Flawless, VVS1, VVS2, VS1, VS2, SI1, SI2, I1 and I2. The 'I' stood for Imperfect and was the opposite of the Flawless diamond.
Though this new system of grading had been contributed to the industry, there was the need to popularise it. To practice the system, one needed to be trained in the nuances of evaluation process.
In april 1953, Soon after revealing the GIA clarity grading sytem, the first diamond grading class was started by Liddicoat and Robert Crowningshield. The place of this first distinguished course was New York. With a modest beginning that attracted only about 11 students from Massachusetts and Pennsylvania, GIA clarity grading courses are held in various cities and this learning is disseminated using various teaching methods like distance education, traveling extension classes and probably webex too.
The system developed in 1953 underwent its first change only in 1970 when the IF grade was added to the already present nine grades. This was done because Liddicoat realized that many diamonds were re polished to get the Flawless certificate, compromising on the symmetry and the proportions. (IF grade means Internally Flawless where the diamond can have some blemishes from outside but has to be flawless internally.)
Minor changes have been made to the system since then but the GIA Clarity Grading System was the first attempt to professionalize any kind of diamond clarity grading system. The efforts by Liddicoat and team have led to a more objective classification of the diamonds that are traded today and therefore made the industry more structured.
Reference : GIA Study Material ( Graduate Gemologist )
Both Greent47 & Mithun Rao are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
Greent47 has sinced written about articles on various topics from Hobbies for the Family. Robert Taylor is a 59 year old retired Lawyer, from Denver, CO, who has had a passion for collecting US coins, particularly Morgan Dollars, since the age of 6. Wanting to share his Passion, he created http://www.ThePerfect-Coin.Com which features US Ra. Greent47's top article generates over 1300 views. to your Favourites.
Mithun Rao has sinced written about articles on various topics from Diamonds, Jewelry and Diamonds. Mithun Rao, a gemologist has an obsession for gems and precious stones since more than 10 years. He also shares a passion for music, painting and meditation. Apart from runnig his own jewelry store he owns and manages the site on. Mithun Rao's top article generates over 22200 views. to your Favourites.
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