What Is a Troy Ounce? How Gold and Silver Are Weighed (and Why It’s Not a Regular Ounce)
What is a troy ounce? It’s the 31.1-gram unit used to weigh and price gold and silver — about 10% heavier than a regular ounce. Call USAGOLD at 1-800-869-5115.
Built on years of professional numismatic experience, our coin buying guides offer clear, reliable insight into grading, pricing, and authenticity. Whether you’re new or seasoned, you’ll find expert guidance you can trust.
What is a troy ounce? It’s the 31.1-gram unit used to weigh and price gold and silver — about 10% heavier than a regular ounce. Call USAGOLD at 1-800-869-5115.
Is gold jewelry a good investment? Generally no — steep markups and weak resale make coins and bullion the better buy. Call USAGOLD at 1-800-869-5115.
Do you pay sales tax on gold and silver by state? See which states exempt bullion, which still tax it, and the 2026 changes. Call USAGOLD at 1-800-869-5115.
Common-date vs. rare-date pre-1933 gold coins: most investors do best with liquid common-date AU/UNC coins over scarce key dates. See which to buy and why.
Should you clean gold coins? No — cleaning leaves hairlines and triggers a “details” grade that cuts value. Learn why, plus safe handling. Call 1-800-869-5115.
Silver bars vs silver coins: bars carry lower premiums, coins buy divisibility and easy resale. Compare both honestly, then call USAGOLD at 1-800-869-5115.
How to give gold as a gift: pick a durable, liquid coin, stay under the annual gift-tax exclusion, and record cost basis. Expert help at 1-800-869-5115.
Gold dollar coin value is driven by rarity and grade, not melt. See $1 and $3 gold coin specs, types, and how to buy safely. Call USAGOLD at 1-800-869-5115.
Canadian Gold Maple Leaf value equals 1 oz of pure .9999 gold plus a low premium. See specs, premiums, and how to buy. Call USAGOLD at 1-800-869-5115.
American Gold Eagle value equals a full troy ounce of gold plus a premium. See specs, the 22k facts, premiums, IRA rules, and how to buy. Call 1-800-869-5115.
British Gold Britannia value is one troy ounce of .9999 fine gold plus a premium. See specs, premiums, IRA and CGT rules, and how to buy. Call 1-800-869-5115.
A Chinese Gold Panda holds 30 grams of .999 fine gold (about 0.9645 oz) plus a premium. See specs, premiums, IRA rules, and how to buy. Call 1-800-869-5115.
Austrian Gold Philharmonic value equals 1 oz of pure 24-karat gold plus a low premium. See specs, premiums, IRA rules, and how to buy. Call 1-800-869-5115.
Gold bar sizes run from 1 gram to 1 kilo, and premiums fall as size rises while divisibility falls too. Learn which weight to buy. Call 1-800-869-5115.
American Silver Eagle value equals 1 oz of pure silver plus a premium. See specs, premiums, IRA rules, and how to buy silver eagles. Call 1-800-869-5115.
American Gold Buffalo value equals 1 oz of pure 24-karat gold plus a modest premium. See specs, premiums, IRA rules, and how to buy. Call 1-800-869-5115.
Proof vs. bullion gold coins hold the same gold, yet proofs cost far more for finish and packaging. See whether the proof premium is worth it before you buy.
Gold Krugerrand value equals 1 oz of pure gold plus a low premium. See specs, premiums, and how to buy random-year coins. Call USAGOLD at 1-800-869-5115.
British half sovereign gold coin value starts with 0.1177 oz of gold plus a premium. Learn the specs, premiums, and how to buy it. Call 1-800-869-5115.
Mexican 50 Peso gold coin value comes down to 1.2057 oz of gold at a low premium. Learn the specs, the 1947 restrike, and how to buy. Call 1-800-869-5115.