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65 articles · updated October 2026

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Article

Buying a Graded Coin With a Scratched Holder

A scratched coin slab may be just a cosmetic nuisance, or it may hide surfaces that matter to the purchase. Treat holder damage and coin quality as separate questions.

October 13, 20266 min read
Guide

Coin Grading: The Complete Collector's Guide

How third-party coin grading works, what the number on the slab actually means, when grading pays, and how to read every label, sticker, and designation from PCGS, NGC, CACG, ANACS, and ICG.

September 16, 202616 min read
Article

Buying Old Holders: Rattlers, Fatties, and Green Labels

How to buy coins in early PCGS and NGC holders — what the upgrade theory is, how to price it against sold data, the counterfeiting risk that comes with old plastic, and when it makes more…

September 16, 20269 min read
Article

When Is a Coin Worth Grading?

A coin is worth submitting when authentication, attribution, liquidity, registry value, or likely certified premium justifies the full cost and grading unc

August 21, 20269 min read
Article

What Does MS70 Mean?

MS70 is the top Mint State grade on the 1–70 Sheldon-derived scale used by major grading services. It is a condition grade, not a promise of rarity or valu

August 21, 20269 min read
Article

Regrading and Crossover Services Explained

Regrade and crossover submissions can improve or transfer certification status, but involve fees, uncertainty, holder rules, and no guarantee of upgrade.

August 21, 20269 min read
Article

Registry Sets Explained

Registry sets turn certified collecting into a scored completion game built around defined coin sets, grades, and certification records.

August 21, 20269 min read
Comparison

Raw vs Graded Coins

Raw coins offer lower friction and direct surface access; graded coins add third-party authentication, standardized opinion, holder protection, and easier

August 21, 20269 min read
Article

Proof Coin Grades Explained

Proof is a method of manufacture, not a condition grade. Proof coins still receive numeric grades and may receive cameo-style designations.

August 21, 20269 min read
Comparison

PCGS vs NGC: What Collectors Should Know

PCGS and NGC are the two dominant third-party grading names in U.S. numismatics. The useful comparison is market acceptance, holder ecosystem, registry goa

August 21, 20269 min read
Guide

How to Store Graded Coins

Graded holders reduce direct handling risk, but stable humidity, temperature, clean storage materials, and protection from abrasion and water still matter.

August 21, 20269 min read
Guide

How to Spot Fake Graded Coin Slabs

Fake and altered holders are a marketplace risk. Verification begins with the service database, then the exact coin, holder, label, and seller photos.

August 21, 20269 min read
Cost & Insurance

How Much Does Coin Grading Cost?

Grading cost is more than the posted tier fee. Membership, shipping, insurance, handling, imaging, attribution, and uncertainty all belong in the decision.

August 21, 20269 min read
Guide

Graded Coin Buying Checklist

A strong purchase combines coin-level appeal, certification verification, holder context, grade, sold-price evidence, population context, seller quality, a

August 21, 20269 min read
Article

Coin Population Reports Explained

Population reports count coins certified by a grading service at particular grades and designations. They are census data, not proof of absolute rarity or

August 21, 20269 min read
Article

CAC Stickers and CAC Grading Explained

CAC stickering evaluates qualifying already-certified coins, while CAC Grading also encapsulates and grades coins directly.

August 21, 20269 min read
Guide

Buying Graded Coins Online: Checklist

Online graded-coin buying is strongest when certification verification, clear photos, seller reputation, return policy, sold-market evidence, and price con

August 21, 20269 min read
Article

What Is CAC? Why the Green Bean Adds Real Money

The small green CAC sticker on a PCGS or NGC slab routinely adds a meaningful premium at auction. What CAC actually verifies, what the gold sticker means, and how CACG changes the picture.

August 1, 20265 min read
Cost & Insurance

Walking Liberty Half Grades: Where the Price Jumps Live

The most beautiful U.S. half dollar has a split personality: cheap late dates in gem, brutal early dates in any mint state. Where each price jump sits and which dates deserve certification.

August 1, 20264 min read
Gold & Investing

American Silver Eagle MS69 vs MS70: Is the Jump Worth 3x?

One grade point separates a near-bullion price from a multiple of it — on a modern coin graded by the million. The honest economics of the 69/70 line, and when the premium makes sense.

August 1, 20264 min read
Comparison

Peace Dollar Buying Guide: Best Value Grades

Peace dollars run a compressed price curve with soft strikes muddying the grades. Where the value hides in the series, and why the 1921 and 1928 play by their own rules.

August 1, 20264 min read
Comparison

Lincoln Cent Key Dates: Which Are Worth Buying Graded

The 1909-S VDB, 1914-D, 1922 no-D and 1955 doubled die anchor the most collected series on earth — and the most counterfeited. Which Lincolns demand certification and which are fine raw.

August 1, 20264 min read
Review

ICG Grading Review: What Buyers Should Know

ICG slabs are genuine and its graders competent — but the market prices ICG holders well below PCGS and NGC. When an ICG coin is a bargain, and when it

August 1, 20264 min read
Comparison

CACG vs PCGS vs NGC: The New Three-Way Race

CAC Grading turned the two-service duopoly into a three-way race for classic U.S. coins. How CACG slabs trade against PCGS and NGC, and which holder to choose in 2026.

August 1, 20264 min read
Comparison

AU58 vs MS60: The Strangest Price Inversion in Coins

A coin with slight wear routinely outprices a coin with none. Why the AU58/MS60 inversion exists, what it teaches about how grading really works, and how to buy the anomaly.

August 1, 20264 min read
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