The 18K gold price is the live rate for 750 hallmark gold, 75% pure gold, the fine jewellery standard favoured across Europe and the Western market for engagement rings and luxury pieces. Check the 18 karat gold price today per troy ounce, gram, kilo, tola, and tael - the complete live breakdown in USD.
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When you see "750" stamped inside a ring, on a bracelet clasp, or engraved into a watch case, it is not an arbitrary serial number. It is a purity hallmark - and it means the piece contains 750 parts of pure gold per 1,000, or precisely 75%. That is what 18 karat gold is: three-quarters fine gold, one-quarter alloying metals. On GoldPrice.Live, the 18K gold price you see above is derived directly from the live gold spot rate, with the 75% purity factor applied to give you the accurate current value per troy ounce, gram, kilogram, tola, and tael.
The 750 hallmark is the European standard for fine jewellery. It is the karat you will encounter most frequently in Swiss watch movements, Italian gold chains, French luxury jewellery, and high-end engagement rings across Western markets. When a jeweller describes a piece as "18 carat" - the British spelling - or "18K" in North America, the underlying purity and the price calculation are identical.
The 18 karat gold price is not a separate market. There is no exchange where 18K gold trades independently. Instead, it is always a direct mathematical derivative of the live gold spot price - the benchmark rate for 24K (pure) gold per troy ounce.
The formula is straightforward:
18K gold price = Spot price × 0.75
So if the current gold spot rate is $3,200 per troy ounce, the 18K gold price per troy ounce is $2,400. Every unit on this page - gram, kilogram, tola, tael - follows the same logic. The live spot rate updates every second, and the 18K values here update in step with it.
This matters practically because it means the 18K price you see is always real-time. You are not looking at a static daily fix or yesterday's closing rate.
Most international spot prices are quoted in troy ounces, but jewellery is bought, sold, and weighed in whatever unit is standard in a given market. This is why the table above shows the 18-karat gold price per gram, kilogram, tola, and tael alongside the troy ounce rate.
If you need to calculate the value of a specific piece - say, a 5-gram 18K gold bracelet - the gold purity calculator handles exactly that. Enter the weight and select 18K, and it returns the current melt value based on the live rate.
Understanding 18K gold is easier when you place it in the full karat spectrum. All five karat pages are available on this site for direct comparison:
18K occupies the premium tier of wearable jewellery gold. 24K gold is pure gold at 99.9% - too soft for most jewellery settings, and the choice for investment-grade bullion coins and bars. 22K gold sits just above 18K at 91.7% purity, and is the dominant standard for traditional jewellery in India and the Middle East. 14K gold at 58.3% purity is the most widely sold jewellery standard in the United States, valued for durability and lower cost. 10K gold at 41.7% is the minimum legal standard to be called gold in the US and UK.
18K's 75% purity sits in the sweet spot for European and Western luxury jewellery: high enough gold content to retain the deep colour and prestige of pure gold, with enough alloy to achieve the durability a fine jewellery piece requires.
Because 18K gold price is a fixed percentage of spot, every force that moves the spot market directly moves the 18K rate - with no lag and no independent variable. The main drivers on any given day include US dollar strength, Federal Reserve interest rate expectations, inflation data, geopolitical risk, and central bank buying patterns. For a detailed, regularly updated read on what is specifically pushing gold's price today, the gold market commentary is published every trading day by Rick Adams.
If you want to track the broader gold rate today across the full session - including today's open, high, low, and percentage change - the gold price today page gives you that session-level view alongside daily macro context.
For questions about the data on this page or anything else, reach the team directly via the contact page.