Alloyed vs. Non-Alloyed Gold Coins

When buying gold coins, you’ll often come across two types: alloyed and non-alloyed (or pure). Both are excellent choices for stacking or investing, and importantly: both contain the exact same amount of gold by weight. The key difference lies in how the coins are made and what metals, if any, are mixed with the gold.

Alloyed Gold Coins
Coins like the American Gold Eagle and the South African Krugerrand are made with gold that’s been alloyed — meaning other metals (like copper or silver) are added for durability. These coins are 22 karats (or 91.67% gold), but they still contain a full troy ounce of pure gold. The added metals increase the coin’s weight and toughness, making them more resistant to wear and handling.

Non-Alloyed (Pure) Gold Coins
Coins like the American Gold Buffalo and the Canadian Maple Leaf are minted using .9999 fine gold, or 24 karats — meaning they are virtually pure gold. They contain the same one troy ounce of gold as their alloyed counterparts, but without added metals. These coins are softer and slightly more prone to scratches, which is worth considering if you plan on frequent handling.

Which Is Better?
Both types have their merits. Alloyed coins may stand up better to wear and tear, especially if you plan on regular handling or transport. Pure gold coins appeal to those who want maximum purity or prefer a more “classic” gold look and feel. In either case, you're getting the same core value: one full ounce of gold. Whichever you choose — you’re stacking smart.