Short Answer
Overview
In the context of numismatics, CAC stands for Certified Acceptance Corp. It is not a primary grading service like the Professional Coin Grading Service (PCGS) or the Numismatic Guaranty Company (NGC). Instead, CAC acts as a secondary verification service. Its primary purpose is to review coins that have already been graded and slabbed by these primary services to determine if the assigned grade is accurate, conservative, or generous.
When a coin is submitted to CAC, an expert examiner reviews the coin through its plastic holder. If the examiner agrees that the coin is properly graded—or if the grade is considered a “strong” example of that grade—a small CAC sticker is affixed to the holder. This sticker serves as a seal of approval, signaling to buyers that the coin meets a high standard of quality for its specific grade.
History / Background
The Certified Acceptance Corp was founded to address the perceived inconsistency in third-party grading. As the market for certified coins grew in the late 20th and early 21st centuries, collectors noted that two coins with the same grade from the same service could vary significantly in visual quality. This phenomenon, often referred to as “grade inflation,” created uncertainty for investors and collectors.
CAC was established to provide an additional layer of scrutiny. By utilizing a small team of highly experienced numismatists, the organization sought to create a benchmark for what a “true” grade looks like. Over time, the presence of a CAC sticker became a recognized shorthand in the auction and retail markets for quality assurance, shifting the focus from the grade itself to the verification of that grade.
Importance and Impact
The primary impact of CAC is on the liquidity and pricing of high-value coins. Coins with a CAC sticker often command a premium price over identical coins without one, as the sticker reduces the risk for the buyer. It provides a level of confidence that the coin will not be “downgraded” if resubmitted to a primary grading service.
Furthermore, CAC has influenced the behavior of the primary grading services. The demand for CAC verification has pushed the industry toward more rigorous standards, as collectors increasingly seek verification to ensure they are paying a fair market price for the quality they receive.
Why It Matters
For the modern coin collector or investor, CAC matters because it acts as a risk mitigation tool. In a market where a single grade difference (e.g., MS64 vs. MS65) can mean a difference of thousands of dollars, an independent verification helps stabilize valuations. It allows buyers to purchase with greater confidence in online auctions or private sales where they cannot personally vet the coin’s quality against a known standard.
Common Misconceptions
CAC is a grading service that assigns a numerical grade to a coin.
CAC does not assign grades; it only verifies if the existing grade from PCGS or NGC is appropriate.
A coin must be CAC-verified to be considered high quality.
Many high-quality coins do not have CAC stickers simply because they were never submitted for verification; the absence of a sticker does not inherently mean the grade is incorrect.
FAQ
Does a CAC sticker increase a coin's value?
Generally, yes. Because it provides an expert's verification that the grade is accurate or strong, buyers are often willing to pay a premium for CAC-verified coins.
Can a coin be rejected by CAC?
Yes. If the examiner believes the coin is overgraded, they will not apply the sticker, and the coin is returned without verification.
Do I need to send my coin to PCGS before CAC?
Yes, CAC only verifies coins that have already been graded and encapsulated by PCGS or NGC.
Leave a Reply