Professional Sheldon-scale grading
Every scan returns an estimated grade from P-1 to MS-70/PR-70, automatic error and variety detection, and a confidence range that tightens with your plan. It is the differentiator that sets CoinVault Pro apart from simple identification apps.
How the Sheldon scale works
The numismatic standard is a 1–70 scale. Higher is better — from a barely identifiable coin up to a flawless specimen.
Heavily worn; design barely visible.
Clear design with moderate wear.
Light wear, most detail intact.
No wear; MS-70 is flawless.
Proof coins use the parallel PR-1 to PR-70 scale. Grades from CoinVault Pro are estimates and do not replace professional third-party certification.
Accuracy tightens with your plan
Every plan grades on the same scale; higher tiers narrow the confidence range around the estimate.
Ballpark grade for casual scans
Solid pre-screen for everyday collecting
Tight enough to decide what to slab
Near-certification confidence for the trade
Automatic error & variety detection
The same scan that grades your coin also looks for the striking errors that turn a common coin into a valuable one.
Doubled Die (DDO / DDR)
Detects a doubled image on the obverse (DDO) or reverse (DDR) caused by a misaligned hubbing — the famous 1955 and 1972 cents.
Repunched Mint Mark (RPM)
Identifies a mint mark punched more than once at slightly different positions, leaving a visible secondary outline.
Off-Center Strike
Flags coins struck off-center, where part of the design is missing and a blank crescent appears on the planchet.
Filled Die & more
Catches filled dies, die cracks and other striking anomalies that distinguish an error from an ordinary coin.
Matched against 25+ known varieties
Rather than guessing, CoinVault Pro compares your coin against a curated database of famous, well-documented varieties.
Key date · designer initials
Dramatic obverse doubling
Rare doubled die
Strong obverse doubling
Grade, detect and value every coin you scan
Start free, then upgrade to Pro for ±2 grading and full auction history. All plans include GDPR-compliant EU hosting. Cancel anytime.