Stamp value estimator.
There is no single "price" for a stamp — value comes from how age, rarity, condition and demand stack up. Answer a few questions and this tool shows where your stamp likely sits and what is pushing it there.
Tell us about the stamp
The result updates as you answer. Unsure on a point? Pick your best guess.
The factors that actually move stamp value
Rarity is how many exist and how many survive in collectable condition — short print runs, early issues and withdrawn stamps are scarcer. Condition can multiply or destroy value: centering, intact perforations, clean gum and the absence of thins, tears and creases matter enormously. Mint vs used cuts both ways — for many classics a sound used copy with a fine cancel is worth more than a faded mint one, while for modern issues mint-never-hinged usually leads.
Errors and varieties — inverted centers, missing colors, misperforations — are where surprise value hides. Demand ties it together: a scarce stamp from an area few people collect may still be inexpensive, while a modestly scarce stamp from a hotly collected country can command a premium.
From signal to real answer
Once you know the factors, the next step is pinning down exactly which issue you have. That's what the Stampy app is for: photograph the stamp, get the most likely identification with an estimated value, and save it to a collection you can sort by value. Get Stampy on the App Store ↗