Japanese Coin Price Guide [2026]
Price reference by category and grade for Japanese antique coins and old monetary metals, based on domestic auction hammer price data. Use as a reference for buying and selling Edo gold, Edo silver, holed coins, modern coins, and commemorative coins.
What is "Grade" — and Why Does It Matter?
In coin collecting, value is determined by rarity and condition (grade). A grade is a rating that indicates how close a coin is to its original mint state. Even for the same type of coin, a difference of just one grade can more than double the price.
Sheldon Scale (International Standard)
A 70-point grading system established in the United States in 1948. The international standard adopted by the world's major grading services including NGC and PCGS. 70 represents a perfect specimen; 1 represents the lowest condition.
Why Grade Matters
High-grade specimens are rare, command strong collector demand, and maintain stable asset value. They also offer greater liquidity when reselling, making them popular as investment vehicles.
Full Grade Reference — Sheldon Scale
The purchase and sale price of antique coins varies significantly by grade (condition). Review the details of each grade on the Sheldon Scale (70-point system) adopted by leading grading services NGC and PCGS.
Mint State (MS60–70) — Uncirculated
Coins that have never been circulated. Original mint luster remains.
About Uncirculated (AU50–58)
Coins with only slight wear but retaining mint luster.
Extremely Fine (EF40–45)
Light wear present but design details remain sharp.
Very Fine (VF20–35)
Moderate wear. Major design is clear but fine details show wear.
Fine and Below (F12 and lower)
Considerable to heavy wear present.
Proof (PF60–70)
Collector coins produced by a special minting process. Characterized by mirror-like surfaces.
Grade vs. Price Impact
Even for the same coin type, a difference of just one grade can significantly change the price. High-grade coins rated MS65 and above are especially rare and are popular as investment vehicles.
Third-Party Grading Recommended for High-Value Transactions
For coins valued above tens of thousands of yen, we recommend obtaining grading from a third-party service such as NGC, PCGS, or JNDA. Graded coins are encapsulated in transparent holders called "slabs," providing both authenticity and grade guarantees.
Authenticity Guaranteed
Eliminates counterfeit risk
Objective Assessment
Fair, impartial grading
High Liquidity
Achieves better prices when reselling
* This price guide aggregates hammer price data from major domestic auctions. Actual purchase and sale prices will vary depending on coin condition, market conditions, and dealer. Prices should be used as a reference only. For an accurate valuation, we recommend a professional appraisal.