Gold & Silver Coin Specifications Checker

Official issuing-authority references: United States Mint, Royal Canadian Mint, The Royal Mint, Austrian Mint, South African Mint, Perth Mint, Banco de México, the Central Bank of Armenia (via its authorized producer Geiger Edelmetalle), and the People’s Bank of China (via China Gold Coin Group). Modern bullion entries link to the original issuing-authority or authorized-producer publication used. Historical U.S. entries link to PCGS CoinFacts, with U.S. Mint composition and date references on the dedicated coin pages. Reference years and collector/bullion finishes are identified where applicable. Reference issues include historic and 2026 products (the Austrian Mint reference is an older official technical brochure). Specifications are static and do not update automatically.

Edge references: Edge design can change by production year or finish. Reeded, serrated and milled all refer to ridged edges; plain indicates a smooth rim; lettered indicates edge inscriptions. American Eagle Type 2 one-ounce coins (from 2021) use a special interruption in their reeded edge. The five-ounce America the Beautiful silver coin has incuse edge lettering. The Mexican Centenario 50 pesos has lettered edging. Each confirmed entry has an additional “Edge reference” link; any unconfirmed issue is explicitly labeled “Not verified”. Edge appearance alone does not authenticate a coin.

Measurements: One troy ounce equals 31.1034768 grams. Fine-grams values are calculated from the stated fine-troy-ounce content; gram weights displayed are the rounded or tolerance-based figures printed by the mints. Some coins contain alloy metals, so their gross mass exceeds fine-metal mass; other official references publish fine weight only. Approximate alloyed gross weight for Mexico’s Centenario family is calculated from official fine-gold content and .900 fineness, and explicitly marked ≈; it is not an independently published mass. Where specified, ≥ marks a mint’s minimum gross weight and ≤ its maximum diameter. Approximate weights marked ≈ are calculated nominal fine-metal equivalents when a separately published gross weight is unavailable.

Comparability: Specifications vary by production year, bullion/proof finish, special issue and tolerance. Modern Libertad-series measurements differ from older issues (especially silver 1 oz), and the Libertad has no face value. New silver references include Perth Mint Emu, Wedge-tailed Eagle and Brumby; Canadian 1.5 oz bullion issues; Royal Mint 1 oz and Tudor Beasts 2 oz bullion; and U.S. Mint America the Beautiful 5 oz. New entries include 2026 Chinese Panda gram denominations; 2026 British Sovereign proof references, 2026 Britannia bullion fractions, and 2026 Lunar Horse bullion issues. Noah’s Ark coin data come from the Armenian central bank’s authorized producer. The Silver Britannia uses a 2026 bullion reference with gross weight from an official 2024 proof edition; South African Krugerrands use 2023 proof references as labeled. The approximate fine-gold content of the Sovereign proof references is calculated from the official mass and fineness. Historical silver calculations use nominal original mass, not the remaining weight of a worn coin. The Kennedy diameter reference follows the U.S. Mint’s 30.61 mm half-dollar specification; PCGS lists the diameter as 31 mm. This checker does not authenticate any coin or establish collectible market value, and is not a complete record of every historic issue. Always consult the linked original reference before making a purchase or testing authenticity.

Privacy & independence: The main coin specifications checker does not request market-price quotes. Metal-value and premium calculations are available through the linked calculators. No third-party scripts, cookies, analytics or user tracking are added by this plugin. Selected coin reference photographs are loaded from Wikimedia Commons, which receives standard connection information when a photograph loads. Photograph source and licensing information is linked beneath the image. Other coins retain the original simplified illustration. Coin names and technical parameters are used descriptively. This independent reference is not affiliated with or endorsed by the listed mints.