The Centenario, also known as the Mexican 50 Peso gold coin, has a total weight of 41.67 grams or approximately 1.3396 troy ounces . This weight is comprised of a 90% gold and 10% copper alloy.
Specifically, a Centenario contains 37.5 grams of pure gold, equivalent to 1.2057 troy ounces . The remaining 4.17 grams is copper, which enhances the coin’s strength and gives it a reddish hue.
In terms of purity, the Centenario is 21.6 karats or .900 fine.
- Total weight: 41.67 grams (1.3396 troy ounces).
- Pure gold content: 37.5 grams (1.2057 troy ounces).
- Purity: 90% gold (.900 fine, 21.6 karats) and 10% copper.
- Diameter: 37 mm.
- Thickness: 2.7 mm.
The Centenario was originally minted in 1921 to commemorate Mexico’s 100th anniversary of independence from Spain. Although it has a face value of 50 pesos, its actual value is significantly higher due to its gold content. It’s a popular choice for both collectors and investors due to its historical significance, artistic design, and substantial gold content.








Is a Centenario 22k or 24k?
Thanks for asking. Metal: 22k Yellow Gold (. 900 fine) Weight: 1.2057 oz (37.5 grams)
How much does a Mexican 50 peso gold coin weigh?
The coin has a gold content of 1.205 troy ounces of gold (the entire weight of the coin is 1.33 ounces ).
Why are centenarios so expensive?
Great question! Until 1967, when South Africa released the gold Krugerrand, the Centenario was the largest gold bullion coin available. The coin’s rarity, particularly the issues from low mintage years also enhance its appeal. Coins minted in these years can command higher prices due to their scarcity.
How much does a 14K centenario coin weigh?
Thanks for asking. How much does the Centenario coin weigh? The total weight is 41.67 grams.