18K Gold Price Today
18-karat gold (750 hallmark, 75% pure) is currently priced at $121.04 per gram and $3,764.78 per troy ounce. This is calculated from the live 24K XAUUSD rate of $5,019.70 per ounce, multiplied by the 18K purity factor (0.75).
Per Gram
$121.04
Per Ounce (Troy)
$3,764.78
Per Kilogram
$121,040.24
Per Tola
$1,411.79
18K Gold Price by Weight
| Weight | 18K Price | 24K Equivalent |
|---|---|---|
| 1 gram | $121.04 | $161.39 |
| 5 grams | $605.20 | $806.93 |
| 10 grams | $1,210.40 | $1,613.87 |
| 50 grams | $6,052.01 | $8,069.35 |
| 100 grams | $12,104.02 | $16,138.70 |
18K prices = 24K spot price x 0.75. Updated every 30 seconds during market hours.
What Is 18-Karat Gold?
18-karat gold is 75% pure gold mixed with 25% alloy metals, stamped with the 750 hallmark. The alloy composition determines the color: copper-rich alloys produce warm rose gold, silver and palladium create white gold, and balanced copper-silver mixtures yield classic yellow gold. All three color variations are 18K as long as the gold content is 75%.
The 25% alloy content makes 18K gold substantially harder than 22K or 24K. It holds gemstone prongs securely, resists scratching better, and maintains its shape over years of wear. This durability is why 18K is the minimum karat level most luxury jewelers will work with for engagement rings and high-end watches.
Where Is 18K Gold the Standard?
18K gold dominates fine jewelry markets in Europe, Japan, and international luxury brands. It is the standard karat for engagement rings in most of Continental Europe (particularly Italy, France, and Switzerland), and virtually all major luxury houses — Cartier, Bulgari, Van Cleef & Arpels, Chopard — manufacture exclusively in 18K.
Swiss watchmakers including Rolex, Patek Philippe, Audemars Piguet, and Omega use 18K gold for their gold models. Rolex even developed proprietary 18K alloys (Everose gold for rose, and their specific yellow gold formulation) that are more fade-resistant than standard 18K alloys.
In North America, 18K competes with 14K — the more affordable option that dominates the mass-market segment. Buyers choosing between the two are essentially deciding whether they prioritize gold richness (18K) or budget and durability (14K).
Compare with other purities: 24K gold, 22K gold, or 14K gold. For unit conversions, see gold price per gram or gold price per ounce.
Frequently Asked Questions
What is the price of 18K gold today?
18-karat gold is currently priced at $121.04 per gram and $3,764.78 per troy ounce. This is 75% of the 24K spot rate ($5,019.70 per ounce), reflecting the 75% gold content in 18K alloy. Prices update every 30 seconds.
What does 18K gold mean?
18-karat gold is 75% pure gold and 25% alloy metals. The 750 hallmark stamp indicates 750 parts per thousand gold content. The alloy typically includes copper (for warmth and hardness), silver (for a lighter tone), palladium (for white gold), or zinc. This composition makes 18K gold significantly harder than 22K or 24K while retaining a rich gold color.
Is 18K gold better than 14K?
18K gold has higher gold content (75% vs 58.33%), a richer color, and stronger resale value. 14K gold is harder, more scratch-resistant, and more affordable. Neither is objectively "better" — the choice depends on priorities. For engagement rings and fine jewelry worn daily, many Western jewelers recommend 18K as the best balance of beauty and durability. For casual jewelry or tighter budgets, 14K performs well.
Why is 18K gold popular for luxury jewelry?
18K gold is the standard for European and international luxury brands — Cartier, Tiffany, Bulgari, Van Cleef & Arpels, and most Swiss watchmakers use 18K exclusively. It offers enough purity for a rich, warm gold tone while being hard enough to hold gemstone settings securely and resist everyday wear. The 750 hallmark is internationally recognized and signals quality in fine jewelry markets worldwide.