18ct Gold Rings
Explore 18ct gold rings in yellow, white and rose gold, including preloved diamond, gemstone, dress ring and band designs. This collection is for rings described as 18ct gold, 750 marked or tested as 18ct gold, with the metal details explained clearly in each listing.
Each listing includes the useful details before buying, such as UK ring size, gold colour, stone details, setting style, hallmarks, stamps, testing notes, weight and condition notes where relevant.
18ct gold has a higher gold content than 9ct gold, so colour, weight and wear can vary depending on the alloy, setting and age of the ring. You can also browse all preloved gold rings to compare 18ct pieces with 9ct and other gold carats.
This selection changes often, with many one of a kind pieces. Check back regularly to see the latest arrivals.
18ct Gold Rings FAQs
18ct gold means the ring contains 18 parts gold out of 24, or 75% gold. It is often marked 18ct or 750. The remaining metal is made up of alloying metals, which can affect the ring’s colour, strength and finish. You can read the gold carat guide for more detail on gold purity marks.
This collection should only include rings listed as 18ct gold, 750 marked or tested as 18ct gold. It should not include gold plated, gold filled, rolled gold or other gold carats. If a ring has mixed metal details, rhodium plating or no visible hallmark, the listing explains the metal information clearly.
18ct gold has a higher gold content than 9ct gold. 18ct gold is 75% gold and is often marked 750, while 9ct gold is 37.5% gold and is often marked 375. The difference can affect colour, value, hardness and how the ring wears over time.
Yellow, rose and white gold are all gold alloys, but the metals mixed with the gold affect the final colour. Yellow gold has a warm tone, rose gold has a pinker tone, and white gold is paler and may have rhodium plating. The yellow, rose and white gold guide explains this in more detail.
Each ring listing includes the UK ring size. If you are unsure, compare it with a ring that already fits well or use the ring size guide to check UK, US and EU conversions. Some rings can be resized, but this depends on the design, stones, setting and band style.
Check the ring size, gold colour, setting, stone details, band condition, hallmarks, stamps, testing notes, weight and photos from different angles. Older and secondhand 18ct gold rings can show wear, resizing marks or previous repairs, so the full description and images are important before choosing.