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Gold

18K Gold Price Today

As of August 8, 2026, the 18K gold price is $3,256.62 per troy ounce, down 0.01% over the past 24 hours. 18K gold is 75% pure, so this melt value is the live 24K spot price multiplied by 0.75, which works out to $104.70 per gram.

Live 18 karat gold price per gram, calculated from real-time spot prices. 18K is the global standard for fine luxury jewelry, used by Cartier, Tiffany, Rolex, and Patek Philippe.

$3,256.62
-$0.22
-0.01%
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24h Change

-0.01%

24h Range

$3,256.20 to $3,257.19

Bid / Ask

$3,256.62

All-Time High

$4,192.04(Jan 28, 2026)

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18K Gold Melt Value Calculator

Calculate scrap gold and silver jewelry values using live spot prices

Input

Troy ounce (oz t) = 31.1035g

Karat = gold purity (24K = 99.9%)

Melt Value

Total Melt Value

$0.00

1 Grams of 18K gold

Weight

0.0322

troy oz

Purity

18.0K

75.0%

Pure Metal

0.0241

troy oz

Spot Price

$0.00

per oz t

Gold Karat Melt Values: 10K to 24K
1 g

Data Methodology

Where does this price data come from?
Gold spot prices are aggregated from trusted market data sources tracking the primary global exchanges, with automatic fallback for redundancy. Prices are updated in real-time during market hours, ensuring you always see the latest data. All prices reflect the latest available mid-market spot rate.
How is the gold spot price determined?
The gold spot price is derived from the most actively traded futures contracts on COMEX (CME Group) and the London Bullion Market Association (LBMA). The spot price represents the current market price for immediate delivery, calculated from near-month futures contracts adjusted for carry costs. During off-hours, prices reflect OTC (over-the-counter) trading across global markets, providing continuous 24-hour price discovery.
How is the 18K gold price calculated?
Pure gold is designated as 24 karat (24K), meaning 99.9% gold content. 18K gold contains 75% pure gold, with the remaining 25.0% consisting of alloy metals for durability. The 18K price is calculated as: 18K price = 24K spot price x 0.75 (75% purity). Note that retail jewelry prices will be higher than this melt value due to craftsmanship, design, and dealer margins.
When are precious metals markets open?
COMEX futures trade Sunday through Friday, 6:00 PM to 5:00 PM ET (23 hours per day with a 1-hour break). The London Bullion Market (LBMA) operates Monday to Friday with two daily fixings: AM fix at 10:30 AM London time and PM fix at 3:00 PM London time. Outside of formal exchange hours, precious metals continue to trade on OTC markets globally, meaning prices can move 24 hours a day, 5 days a week. Our data reflects these continuous market movements.

Understanding 18K Gold

18 karat gold contains 75% pure gold and 25% alloying metals, making it the global standard for fine luxury jewelry. It carries the internationally recognized 750 fineness hallmark (750 parts per thousand of pure gold). Available in yellow, white, and rose variations, 18K gold is the preferred purity for prestigious brands like Cartier, Tiffany & Co., Bulgari, and Van Cleef & Arpels.

To calculate the 18K gold price, multiply the current 24K spot price per gram by 0.75. If pure gold trades at $100 per gram, 18K gold has an intrinsic metal value of approximately $75.00 per gram before any design, craftsmanship, or brand premiums.

18K gold is the dominant purity in European and Asian jewelry markets, where consumers prefer higher gold content. In Italy, France, and much of continental Europe, 18K is the standard karat for fine jewelry and is often the minimum purity offered at established jewelers. It is also the standard purity for high-end Swiss watches by Rolex, Patek Philippe, Audemars Piguet, and Omega for their gold timepieces.

The 75% gold content gives 18K a deeper, richer yellow tone than 14K gold, which many buyers find more visually appealing. The 25% alloy content provides enough hardness for everyday wear, making 18K suitable for engagement rings, wedding bands, and statement pieces.

The alloy composition is adjusted to produce white gold (using palladium or nickel) or rose gold (using a higher copper ratio), all while maintaining the same 750 purity standard.

For long-run context on how 18K's underlying spot has moved across decades of luxury-jewelry pricing, see our gold price history from 1970 to 2026: 56 years of annual averages with inflation-adjusted highs and decade-by-decade analysis.

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

Data provided by MetalCharts, a free precious metals tracking platform offering real-time prices, interactive charts, historical data, and portfolio tools for gold, silver, platinum, palladium, and copper. Prices sourced from major global exchanges including COMEX, LBMA, and LME, updated continuously during market hours.

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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 and premium Swiss watches.
How to calculate 18K gold price?
Multiply the current 24K gold spot price by 0.75. For a per-gram calculation, divide the spot price per troy ounce by 31.1035, then multiply by 0.75. If spot gold is $4,000/oz, the 18K price per gram is about $96.45.
Is 18K gold real gold?
Yes. 18K gold contains 75% pure gold by weight, 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?
18K gold contains 75% pure gold while 14K contains 58.5%. 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.
How much is an 18K gold ring or chain worth?
Weigh the piece in grams and multiply by 0.75 and by the current pure gold price per gram. A 10 gram 18K chain at $100/gram pure gold holds 10 x 0.75 x $100 = $750 of gold. Dealers buying scrap typically pay 70-90% of that melt value; pieces from luxury brands may be worth far more sold intact.
What do the 750 and 18K stamps mean?
They are the same purity expressed two ways. '750' is the fineness mark (750 parts gold per 1,000), the standard hallmark in Europe; '18K' or '18KT' is the karat mark common in the US. Either stamp means the piece is 75% pure gold alloyed with metals like copper, silver, or palladium.
Is 18K white gold or rose gold worth the same as yellow 18K?
Yes, in melt value. All 18K gold contains 75% pure gold regardless of color; the difference is the alloy mix (palladium or nickel for white gold, more copper for rose). White gold pieces may carry a rhodium plating that adds nothing to melt value. Resale of intact jewelry can vary by color fashion trends.
Does 18K gold tarnish or fade?
18K yellow gold resists tarnish very well because it is three-quarters inert gold. The alloy metals can dull the surface slightly over years, and white 18K gold may yellow as its rhodium plating wears, which is restorable with replating. Overall it ages better than 14K and 10K, which contain more reactive alloy.