18K Platinum price in United States today — June 2, 2026
Live price of 18K platinum in United States per gram in local currency (US Dollar). 18K contains 75.0% pure platinum, mixed with alloys for durability — widely used for fine jewelry, luxury watches and engagement rings.
Other Platinum karats in United States
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18k platinum price in other countries
Compare today's 18k platinum price across local markets.
Most common uses of 18K Platinum
- Catalytic converters in diesel vehicles
- Hydrogen fuel-cell catalysts
- Luxury jewelry and watches
- Laboratory and medical equipment
Key industries using Platinum
Platinum price history — a quick overview
Over the past two decades, platinum has moved from under $400/oz in the early 2000s to record highs above $2,000/oz, driven by inflation, central-bank buying and safe-haven demand. Local prices in United States also reflect the US Dollar/USD exchange rate, so periods of currency weakness amplify the rise of platinum prices for local buyers.
About 18K Platinum prices in United States
This page is dedicated to the 18K platinum price in United States, expressed in local currency (US Dollar). 18K is 75.0% pure platinum, with the remainder being alloy metals that add hardness, color and durability. In United States it is one of the most traded purities for jewelry, gifts and personal investment — buyers, jewelers and appraisers monitor this exact purity daily because it directly drives resale value and making-charge calculations.