NGC Numismatics Guarantee Corporation (Recommended)
Considered the second top grading company all across the board. However, many consider NGC on par with PCGS. I feel the NGC holders lack in eye appeal compared to PCGS, but you can't argue their grading standard. They also have a knew "side view" slab so you can see the edge of a graded coin.
NGC Web Site
(Recommended)
I feel they are just as good as NGC and PCGS for grading, quality, attribution and authentication. Will grade problem coins. They claim to be the first coin grading company created by the American Numismatic Association (ANA) in 1972. The holders where flat, plastic type with a certificate and a picture for the grade of the obverse and reverse of each coin.
Since 1989 they slab their coins in the hard plastic holder made popular by PCGS.
A CASE FOR EBAY "SLABBERS"
Ebay is flooded with coins graded by a copious amount of different grading companies. Many of these companies are "basement" company, third party graders, practicing grading techniques that are suspect. Also, there are many horror stories of these companies grading counterfeit and damaged coins in their holders, but sold as authentic.
Often, the dealer company (seller) may own or is affiliated with the some of these "slabbers" and this creates a conflict of interest. A circumstance that introduces the unethical practice of starting grading companies for the sole purpose of selling more coins, at a higher premium, by assigning grades that do not meet the accepted standard for that particular grade.
When looking slabbed coins, one should always question the grade of the coin. If the holder is not from a top tier grading company, then make an offer or bid that matches the book value (BV) a couple of grades lower than the holder states. Also, look for certain other details like letter fonts, wrong mint mark year, etc. To be sure the coin is authentic.
Another detail that requires attention-anyone can buy the Coin World holder (known by the little earth symbol in the bottom left hand corner of the holder), put a coin inside, and affix a label that states any grade they chose.
This is important, because there exist many examples of coins that jump in BV from grade to grade. One example of note is the 1884-S Morgan Silver Dollar. The price dramatically increases from AU58 to MS60, and this coin is difficult to find in mint state, providing an easy target for the uneducated coin grader.
Old "Rattler" Green Label (Recommended)
Oldest PCGS Holder from the first few years. It is called a "Rattler" holder because the slab can be shook causing the coin to knock against the holder. The darker green holder replaced this slab version because of the coin movement.
Old Green Label (Recommended)
Many feel these holders contain undergraded coins and collectors buy them with the hope they can re-submit and attain a higher grade.
PCGS Professional Coin Grading Service (Recommended)
Considered the top grading company all across the board. Many dealers will buy coins graded by PCGS, "site unseen". They claim to be the first grading company, but are definetly the first to use hard plastic holders. It is widely accepted that the Old Green and Old "Rattler" holders where the more conservative years for PCGS grading. Many buyers pay a higher premium for coins in these holders, hoping for a higher grade upon re-submission with the less conservative standards of today.
Aug. 30, 2007 update: PCGS will no longer use First Strike on their holders unless it can be proven that the coins where struck by the first die pair.
Want to know more about third party grading companies? Here is some more info...
PCGS (PROFESSIONAL COIN GRADING SERVICE)
NGC (NUMISMATICS GUARANTEE CORPORATION)
ANACS (American Numismatics Association Certification Service)
ICG (Independent Coin Grading)
FEATURED STORY
Ebay's new third party grading company policy allows the following grading companies: PCGS, NCS, ICG, ANACS AND NGC.
Ebay has a new policy on selling graded coins. The Third Party Grading Companies that are allowed on ebay are-PCGS, NGC, ICG, ANACS. NCS is also allowed, but is a subdivision of NGC which is a Conservation Holder. For more information on NCS click the here.
This new coin auction policy was enacted due the wide-spread "Coin Slabbing" frauds on ebay, and people who self grade raw coins in order to hype their listings for higher bids. I encourage all who see an auction that violates this policy to report them to ebay. Report Ebay Listing Violations
There are other provisions in this policy. For example, the auction title cannot include a numerical grade like MS65, VF30, etc. Read an ebay thread on this policy by clicking the link below in our Featured Story.