Gold & Silver: Purity & Weight Matter!

How Purity and Weight Affect the Value of Precious Metals

When investing in gold, silver, or other precious metals, two key factors determine value: purity and weight. Understanding these can save money and help you make informed purchases.

1. Purity – What It Means

Purity refers to the percentage of the metal in a coin or bar:

• Gold: 24K (99.9% pure), 22K (91.6%), 18K (75%)

• Silver: 999 (99.9% pure), 925 (92.5% sterling silver)

Gold purity is measured in karats or fineness. When you choose a gold coin, always check the purity mark to ensure you're getting investment-grade metal.

Silver coins typically have a purity of .999 or .9999. Browse our silver coin selection to find high-purity options.

Higher purity usually means higher value. For example, a 1-ounce 24K gold coin is worth more than a 1-ounce 18K gold coin because it contains more actual gold.

To make sure the purity claimed is genuine, follow our guide on how to verify the claimed purity.

2. Weight – How It Adds Value

Weight is simple: the heavier the coin or bar, the more metal it contains — and the higher its intrinsic value. Precious metals are often sold per ounce or gram, so even small differences in weight can change the price.

3. Practical Tips to Identify Purity

• Look for official stamps: Government-minted coins and certified bars typically include purity markings.

• Check certificates of authenticity: Reputable dealers issue documentation confirming weight and purity.

• Use a jeweler’s loupe: Inspect markings for clarity and legitimacy.

• Weigh and measure: Compare the item’s weight and dimensions to official specs.

• Magnet test: Pure gold and silver are non-magnetic.

• Professional assay: Certified labs can verify high-value items.

Bottom Line:
Understanding purity and weight helps you determine real value, avoid overpaying, and identify counterfeit products. Small differences matter!