Coin Grading Made Simple

What are Graded Coins?

Rosland specialises in graded coins. A coin is almost always worth more when it has been graded than when it is ungraded. An ungraded coin is subject to the elements and/or damage – even when it is in exceptional condition. Whilst ungraded coins have no guarantee of grade and condition, graded coins are certified by a professional grading company with a recognised grade on a scale between 1 and 70. Once a coin is in its protective cover it cannot be accessed again, thus keeping the coin at its certified grade forever. Ungraded coins could have quality that is less than advertised and depicted in photographs or, worse still, be fake. Also read more about coin grading here.

Although ungraded coins are undoubtedly cheaper, they are a risky purchase and, as pointed out, the true value of a coin lies in having it graded correctly, by an established and knowledgeable coin grading service. Rosland typically sells coins which have been certificated and graded by NGC (Numismatic Guaranty Corporation) and PCGS (Professional Coin Grading Service), who are recognised as the top two grading companies. They both are the two most reliable and offer consistent services and use a consensus method of grading. Added to this, they guarantee the grades and authenticity of the coins. A NGC or PCGS-graded coin have a higher demand in the market.


Grading a coin is to determine what the coin’s market value is based on how well the coin was originally struck, how well the coin metal itself has been preserved, and how much wear and damage the coin has suffered since it was minted. For most practical purposes, especially for beginners, we’re going to be concerned with how to tell how much wear the coin has had, and where it fits on the 70-point scale.

The 70-Point Grading Scale

When coins are graded, they are assigned a numeric value on the Grading Scale:

  • (P-1) Poor – Barely identifiable; must have date and mintmark, otherwise pretty thrashed.
  • (FR-2) Fair – Worn almost smooth but lacking the damage Poor coins have.
  • (G-4) Good – Heavily worn such that inscriptions merge into the rims in places; details are mostly gone.
  • (VG-8) Very Good – Very worn, but all major design elements are clear, if faint. Little if any central detail.
  • (F-12) Fine – Very worn, but wear is even and overall design elements stand out boldly. Almost fully-separated rims.
  • (VF-20) Very Fine – Moderately worn, with some finer details remaining. All letters of LIBERTY, (if present,) should be readable. Full, clean rims.
  • (EF-40) Extremely Fine – Lightly worn; all devices are clear, major devices bold.
  • (AU-50) About Uncirculated – Slight traces of wear on high points; may have contact marks and little eye appeal.
  • (AU-58) Very Choice About Uncirculated – Slightest hints of wear marks, no major contact marks, almost full lustre, and positive eye appeal.
  • (MS-60) Mint State Basal – Strictly uncirculated but that’s all; ugly coin with no lustre, obvious contact marks, etc.
  • (MS-63) Mint State Acceptable – Uncirculated, but with contact marks and nicks, slightly impaired lustre, overall basically appealing appearance. Strike is average to weak.
  • (MS-65) Mint State Choice – Uncirculated with strong lustre, very few contact marks, excellent eye appeal. Strike is above average.
  • (MS-68) Mint State Premium Quality – Uncirculated with perfect luster, no visible contact marks to the naked eye, exceptional eye appeal. Strike is sharp and attractive.
  • (MS-69) Mint State All-But-Perfect – Uncirculated with perfect luster, sharp, attractive strike, and very exceptional eye appeal. A perfect coin except for microscopic flaws (under 8x magnification) in planchet, strike, or contact marks.
  • (MS-70) Mint State Perfect – The perfect coin. There are no microscopic flaws visible to 8x, the strike is sharp, perfectly-centered, and on a flawless planchet. Bright, full, original luster and outstanding eye appeal.
Canadian Graded Gold Coins

The Three Coin-Grading Buckets

The most misunderstood aspect of coin grading, from the newcomer perspective, is how the grading scale works. Think of it as having three “buckets”. The first bucket is for circulated coins; the second bucket is for About Uncirculated (AU) coins, and the third bucket is for Uncirculated (Mint State, or MS) coins. The MS scale (from MS-60 to MS-70) isn’t really just a continuation of the previous scale of AU coins. It is a completely separate mini-scale of 11 grades that begins with the “basal state” MS-60 Uncirculated coin. This is an ugly, bag-marked, no-lustre dog, but it IS Uncirculated! By comparison, the AU-58 coin beneath it has attractive eye appeal and nearly full lustre. The reason a coin that grades 58 looks much nicer than a coin that grades 60 is because they are really in separate “buckets” of the grading scale.

Likewise, the AU portion of the scale starts at 50 and runs through 59. The AU-50 coin might never have actually circulated in commerce, but because it has scuff marks, has been through several coin-counting machines, and has been handled a small amount, it is no longer in Mint State. So we put it in the AU bucket and give it the bottom grade of AU-50 if it’s ugly, and AU-58 if it’s not. This is oversimplifying a little, but it demystifies why the grading scale seems to go from “appealing coins” to “ugly coins” and then back to “appealing”.

How to Grade Circulated Coins

The third bucket is the range of circulated grades, from P-1 to EF-49 (although EF-45 is the highest circulated grade you’ll probably see actually being used). Most beginners looking for grading help have circulated coins, and fortunately circulated coins are the easiest for the novice to grade. It helps to have a Mint State specimen of the coin type under consideration to make comparisons to, but this isn’t a requirement.

Coin Grading Step 1

First of all, you’ll need to have an excellent light source, such as a 100 watt bulb in a lamp close to where you are sitting. Secondly, you’ll need a decent magnifier, preferably something that magnifies about 5 to 8 times (expressed as 5x to 8x). Anything stronger than 8x isn’t usually used in coin grading, and anything lower than 5x is too weak to see important details and small damage marks.

Coin Grading Step 2

Determine which “bucket” your coin fits into. Is it absolutely Uncirculated (Mint State)? Does it have only the slightest hints of wear on the high points (About Uncirculated)? Or does it fall in the most common bucket, the Circulated bucket?

Coin Grading Step 3

Compare your coin to the scale shown above to determine where it fits on the scale. Keep in mind that the numbers are not proportional; in other words, the amount of detail loss between EF-40 and EF-20 is not the same as that which is lost between MS-60 and EF-40 (remember, they’re in different buckets). In fact, the coin that grades EF-40 has lost only about 5% to 10% of its detail, but the coin that grades F-20 has lost about 60%. Use the written descriptions to place your coin as best you can. If you want more precise grading, I recommend The Official ANA Grading Standards book, which breaks the grades out for every major U.S. coin type, along with photos to help you determine the correct grade.

PCGS MS68 Canada Maple Leaf gold coin
PCGS MS69 Gold Eagle gold coin