Fine weight
Fine weight measures the gold itself. Gross weight includes any alloy. When a coin states one troy ounce of fine gold, do not multiply that fine weight by its purity again.
THE GOLD GUIDE
Understand what you own.
Start with the product, then examine the price, ownership terms and exit costs.
Premium
The amount charged above the reference metal value. Compare the same fine-gold quantity and include shipping, payment fees and tax where applicable.
Resale spread
A retail purchase price and a dealer buyback bid can differ. Ask for a written bid and all selling costs before comparing an exit scenario.
Two American gold coin formats.
| Format | Composition | What to compare |
|---|---|---|
| American Eagle gold bullion | 22 karat / 91.67% gold | Stated fine-gold content; gross weight is higher. |
| American Buffalo gold bullion | 24 karat / 99.99% gold | Fine content, product premium and dealer bid. |
Sources: U.S. Mint bullion programs; 2026 Eagle specifications. Reviewed 13 November 2026. Proof coins are collector products; their retail premiums differ from bullion.
Ownership is part of the product.
Delivered metal
Confirm the delivery process, insurance, signature requirements and the cost and practicality of secure storage.
Vaulted metal
Read the contract for title, allocation, segregation, insurance, audit access, withdrawal rights and the provider’s insolvency provisions.
Exchange-traded exposure
A fund share is a different legal instrument from a coin held personally. Read the fund documents, costs and redemption conditions.
Is a regular ounce the same as a troy ounce?
No. A troy ounce is approximately 31.1034768 grams. The calculator uses troy ounces of fine gold throughout.
Does a lower premium guarantee a better outcome?
No. Product condition, authenticity, resale bids, fees and holding costs also matter. The calculator lets you compare assumptions without forecasting prices.
Does this website sell or store gold?
No. This independent concept provides research and tools. Listed organizations are external resources.