The problem with most coin “values”
Search any coin online and you will drown in misleading numbers. Asking prices on marketplaces show what sellers wish for — the listings that never sell at inflated prices stay visible, while realistic ones disappear the moment they sell. Printed and static price guides age from the day they are published, and coin markets move. Forum anecdotes about a rare variety get applied to common coins that merely look similar.
The only number that cuts through all of this is the sold price: a completed transaction where a real buyer paid real money. That is the ground truth of what a coin is worth today.
How CoinVault Pro combines two data sources
CoinVault Pro anchors each valuation in two complementary sources. Numista catalog data establishes what the coin is in reference terms — the type, the issue, the context a valuation must start from. Real eBay sold prices then show what that coin actually changes hands for in the current market.
The combination matters because either source alone has gaps: a catalog tells you about the coin but markets move faster than any catalog, while raw sold listings need correct identification to be matched to your coin at all. Identification from the app’s dual AI, catalog grounding from Numista, and market truth from sold transactions — that is the full chain.
- Numista catalog data: authoritative reference for what your coin is.
- Real eBay sold prices: what buyers actually paid, not what sellers asked.
- Grading estimate applied: condition on the Sheldon scale drives where in the price range your coin sits.
Why condition changes everything
The same coin can be worth pocket change in worn condition and serious money in mint state, which is why a valuation without a grade is barely a valuation at all. CoinVault Pro pairs its price data with the AI grading estimate on the Sheldon 1–70 scale, so the value you see reflects the condition of your actual coin rather than a meaningless min-to-max range.
For your collection as a whole, this compounds: value tracking across every cataloged coin gives you a running total grounded in sold-price reality — useful for insurance, for selling decisions, and for the simple satisfaction of watching your collection grow.
Price your coins against reality
If you have ever wondered whether that coin in your drawer is a retirement plan or a nice paperweight, the answer is a scan away. Download CoinVault Pro, photograph the coin, and see a valuation built from Numista catalog data and real eBay sold prices — on the free tier, with no wishful thinking involved.