18K Gold Price Today
Track the live 18 karat gold price per gram with real-time calculations from spot prices. The global standard for fine luxury jewelry from the world's top brands.
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Understanding 18K Gold
18 karat gold contains 75% pure gold and 25% alloying metals, making it the global standard for fine jewelry. Available in yellow, white, and rose variations, 18K gold is the preferred purity for brands like Cartier, Tiffany & Co., and Bulgari.
- Purity – 75.0% pure gold (750 fineness)
- Hallmark – 750 (international standard)
- Colors Available – Yellow, white, and rose gold
- Durability – Excellent for daily-wear fine jewelry
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Frequently Asked Questions
What is 18K gold?
18K gold is an alloy containing 75% pure gold and 25% other metals such as silver, copper, palladium, or nickel. The 18 in 18K means 18 out of 24 parts are gold. It carries the 750 hallmark and is the global standard for fine luxury jewelry.
How to calculate 18K gold price?
Multiply the current 24K gold spot price by 0.75 to determine the 18K gold price. For a per-gram calculation, divide the spot price per troy ounce by 31.1035, then multiply by 0.75. For example, if spot gold is $3,100/oz, the 18K price per gram is about $74.76.
Is 18K gold real gold?
Yes, 18K gold is absolutely real gold. It contains 75% pure gold by weight, which is a very high gold content. The remaining 25% consists of alloying metals added to improve durability. All major luxury jewelry brands use 18K gold, and it is hallmarked 750 to certify its purity.
What is the difference between 18K and 14K gold?
The primary difference is gold content: 18K gold contains 75% pure gold while 14K contains 58.5%. This means 18K has a richer, deeper color and higher intrinsic value but is slightly softer. 14K is more durable and affordable, making it popular in the US. 18K is preferred in Europe and by luxury brands for its superior color and prestige.