Modern Coins Market Report
As of September 2026. Auction data and curated articles for this category.
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Top 5 Hammer Prices in Modern Coins
Related Articles on Modern Coins
The Value and Market Price of 5-Yen Gold Coins — How the Difference Between Old and New Types Determines Price
The 5-yen gold coin was issued by the Meiji government when it introduced the gold standard. The old type (Meiji 4–30) has a weight of 8.33 g and a pure gold content of 7.5 g; the new type (from Meiji 30 onward) has a weight of 4.1666 g and a pure gold content of approximately 3.75 g as prescribed by Article 6 of the Coinage Act, while both share a fineness of 900/1000. The old type is characterized by a dragon design and the new type by a chrysanthemum crest; rare dates command high prices.
Modern CoinsThe Value and Market Price of the Old 1-Yen Gold Coin — Mintage Figures, Condition, and How to Distinguish Grades
The Old 1-Yen Gold Coin (旧1円金貨) was Japan's first modern gold coin, issued from Meiji 4 (1871) to Meiji 13 (1880). It was designed to conform to the international gold standard, with a weight of 1.67 g and a gold fineness of 900/1000. Current market prices are predominantly in the ¥500,000–¥1,500,000 range, with examples of rare date coins exceeding ¥2,000,000 on record. Mintage figures, condition, and grades assigned by PCGS and NGC are the principal factors that significantly influence price.
Modern CoinsGiza-jū Value and Market Prices: Shōwa 26 Issues Reach Tens of Thousands of Yen — How to Identify and Store These Introductory Antique Coins
The value of Giza-jū (10-yen coins with reeded edges minted from Shōwa 26 to 33) varies greatly depending on the year of issue and condition. High-grade uncirculated examples of the Shōwa 26 issue trade for ¥30,000 to ¥100,000 or more, while circulated specimens fetch only dozens to several hundred yen. The reeded edge was discontinued after the Shōwa 33 issue, and this limited production window is the source of their scarcity.
Modern CoinsValue and Market Price of the Taishō Small-Type 50-Sen Silver Coin: How to Identify Rarity by Year
The Taishō Small-Type 50-Sen Silver Coin is a modern silver coin that appeared in 1922 with silver fineness reduced to 720/1000. Value is determined by the combination of date rarity and state of preservation. Individual prices and auction results are listed only once verifiably matched records — with sale, lot, source URL and review date — exist.
Modern CoinsThe Value and Market Price of the Ryū 50-Sen Silver Coin (竜50銭銀貨) — An Introduction to Modern Coinage
Drawing on the coin encyclopedia, this article explains the "Ryū 50-Sen Silver Coin (竜50銭銀貨)" from the modern coinage category. The ITTENDO editorial team has organized, in beginner-friendly terms, how value is determined by the three axes of rarity, condition, and demand, along with the concepts of median price and thin trading that are essential for reading the market.
Modern CoinsThe Value and Market Price of the 10-Yen Gold Coin — An Introduction to Modern Coinage
From the coin encyclopedia, the ITTENDO editorial team explains the modern coin '10-Yen Gold Coin' in beginner-friendly terms, covering how value is determined along three axes—rarity, condition, and demand—and how to interpret market prices using median values and the concept of thin trading.
Modern CoinsThe Value and Market Price of the Old 1-Yen Gold Coin — An Introduction to Modern Coinage
Drawing on the coin encyclopedia, ITTENDO's editorial team explains the "Old 1-Yen Gold Coin" (旧1円金貨) from the modern coinage category. Written for beginners, the article organizes how value is determined along three axes — rarity, condition, and demand — and explains the concepts of median price and thin trading when reading market prices.
Modern CoinsModern Coinage Market Flash Report — Reading the Market from a Recent Sale of ¥24,000
A flash report on the modern coinage market based on recent transaction data. Using a ¥24,000 Mercari sale as an example, the ITTENDO editorial team explains how to distinguish median prices from thin-market conditions, and the three factors that determine value.
Modern CoinsModern Coinage Market Flash Report — Reading the Market from a Recent Sale at ¥6,000
A flash report on the modern coinage market based on the latest transaction data. Using a ¥6,000 Mercari sale as an example, the ITTENDO editorial team explains how to distinguish median prices from thin-market trades, and the three factors that determine value.
Modern CoinsThis Week's Second Look: Re-Reading the Market and Value of Modern Coins
In "This Week's Second Look," ITTENDO revisits past topics through the lens of market trends. Using modern coins as the subject, the editorial team organizes the three factors that determine value, how to read median prices and thin trading, and the mistakes beginners should avoid.
Modern CoinsValue and Market Price of the Taishō 12 Kirimon 50-Sen Silver Coin (Earthquake Year) — Introduction to Modern Coinage
An explanation of the modern coin "Taishō 12 Kirimon 50-Sen Silver Coin (Earthquake Year)" from the coin encyclopedia. The ITTENDO editorial team has organized, for beginners, how value is determined along three axes—rarity, condition, and demand—along with the concepts of median price and thin trading when reading the market.
Modern CoinsValue and Market Price of the 1993 (Heisei 5) Proof Coin Set — Introduction to Modern Coinage
From the Coin Encyclopedia, this article explains the 'Heisei 5 (1993) Proof Coin Set: A Staple of the Collector Market' in the modern coinage category. The ITTENDO editorial team has organized, for beginners, how value is determined along three axes — rarity, condition, and demand — along with the concepts of median price and thin trading when reading the market.
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Disclaimer: This report is reference information based on auction hammer price data and does not guarantee future prices. Investment decisions are made at your own risk; please consult a specialist as needed.