How much is 18ct gold worth per gram?

An 18ct gold watch chain

Some cash-for-gold companies take advantage of customers who don’t know what their gold is worth. They keep their calculations secret and some even deduct fees for postage or processing. If you don’t know how much 18ct gold is worth per gram, you’re at risk of getting ripped off.

I strongly advise you to read this guide carefully. I’m going to explain how you can work out the value of your 18ct gold and how you can compare quotes. It’s not complicated, but it will help you make an informed decision.

How much is 18ct gold worth per gram today?

Right now, Gold-Traders UK will pay you £ for 18-carat gold. That’s our live rate: the figure updates automatically when we adjust our prices. Whether you post your gold to us or visit our secure counter in Royal Wootton Bassett, we’ll pay you the same per gram. There are no deductions to worry about and no hidden fees: the price you see is the price you get.

Our rates are based on the real-time, global gold bullion market which can fluctuate up and down. You can see the live ‘spot’ price for gold and other precious metals at the top right corner of our homepage.

We’ve seen quotes from other companies for as little as 20% of the market value of our customer’s 18ct gold. If they had sold their gold to us they could have made hundreds or even thousands of pounds more.

Got a quote from another buyer? Insist on a breakdown of the quote and calculate the real value of your gold using our fact-checking tool. Enter the weight of your gold and the price you’ve been offered to see how the numbers stack up. If you’re being offered less than 90% then it pays to go elsewhere.

What is 18 carat gold?

Carats (or karats) are a way of talking about the purity of gold. 100% pure gold is referred to as 24-carat. Lower carats contain a percentage of gold, alloyed with other metals. This can make it stronger when compared with pure gold which is quite soft (not great for making jewellery). As well as being more durable, gold alloys are also less expensive than pure gold, while retaining the rich glowing lustre.

18-carat gold is made from 75% pure gold and 25% other metals. Jewellers and goldsmiths use copper for a rose gold colour and silver or zinc to achieve a lighter colour.

Wedding rings and engagement rings are often made out of 18ct gold because it’s more durable, making it perfect for daily wear. As well as being beautiful fine jewellery items, 18ct rings are literally worth their weight in gold and you could be in for a nice payout if you choose to sell.

How much is an 18-carat gold ring worth?

The value of 18ct gold jewellery is based on two factors:

  • The gold ‘spot’ price at the time you sell
  • The weight of the item in grams, minus any stones or non-gold parts

Our current price for 18ct gold is £. All you need to do is multiply this figure by the weight of your ring to get the price we’ll pay for it today.

This simple equation applies to jewellery, some gold watches (minus their movement) and even dental gold. It doesn’t matter if the item is broken or damaged: if it’s made from 18ct gold, it’s still valuable.

Certain jewellery items, watches or other collectables like coins might be worth more than their gold value. We pay a premium for prestige watches and gold coins so check out our rates or contact us for a quote.

How to identify 18ct gold

How do you know if your gold is really 18 carat?

Modern jewellery made in the UK will display a hallmark, which can tell you exactly what your gold jewellery is made of. Hallmarks are the tiny stamps you see on the inside of rings or the backs of earrings. They’re a type of consumer protection, designed to assure buyers they’re getting what they pay for.

Hallmarked British 18ct gold should display a tiny ‘750’ or ‘18’. You can confirm the purity of your gold and work out the precise year it was made by using our online hallmark identification wizard. Different numbers and symbols might be used if you bought your gold abroad or it might show no hallmarks at all. You can still sell this gold but checking its carat at home can be a challenge.

In the Gold-Traders office, we used a high-tech tabletop XRF analysis to test the chemical composition of our customers’ items. This means we can easily authenticate your unmarked gold and we’ll let you know if it’s more or less pure than you thought, ensuring an honest and accurate appraisal.

Don’t get ripped off with free envelopes

So, you’ve worked out the real value of your 18ct gold and you’ve got a good quote. How are you going to get your precious metal to the buyer?

Some cash-for-gold companies will send you a ‘free’ postage bag or envelope. These are a marketing gimmick. We don’t offer them.

These pre-paid mailers don’t provide any additional protection for your items when they’re in transit and the price will be deducted from your payout. Most of these postage packs aren’t used and the big gold-buying companies recoup the associated costs by offering low prices for their customer’s gold.

You can save money by using your own padded ‘jiffy’ envelope (we’re happy to receive recycled and repurposed packing materials, so long as you use a Special Delivery outer bag). Choose Royal Mail Special Delivery at the Post Office and retain your proof of postage slip. This service provides insurance and you’ll be able to track your gold every step of the way.

Selling your 18ct gold with Gold-Traders UK

We founded Gold-Traders in 2008 to make selling gold straightforward. We want to demystify the process and lift the lid on unscrupulous practices but most importantly we want our customers to get a fair price. That’s why we share our live gold prices, letting you know exactly what we’ll pay for 18ct gold and other gold items.

In 2022 our hard work was rewarded when we became the UK’s first precious metal dealer to gain Trading Standards approval through their trusted Buy With Confidence Scheme. There are lots of independent reviews for Gold-Traders on their website and even more on our Trustpilot page from customers like you who have sold us their scrap gold.

Ready to cash in your 18-carat? Fill out a claim form online today. All you need to do is post your gold to us and you could get a payout the next working day. No hidden fees and no uncertainty.

Looking for more information? Contact our friendly team now: they’re waiting to help you with your sale

Further reading

6 Responses to “How much is 18ct gold worth per gram?”

  1. Anonymous says:

    Hi I have a 18ct real ruby sapphire and diamonds 7g how much can I get

  2. Clair Danaci says:

    Hi I have an antique brooch it weighs 11.9g and is 18ct gold. No hallmarks just stamped 750. How much could I expect to get? It’s in perfect condition with 5 tiny ruby’s.

    • Hi Clair,

      Please take a look at our up-to-date gold prices page to work out the value of your brooch. Unlike many of our competitors (who don’t publish what they actually pay), our published rates are accurate, with no fees to be deducted. Bear in mind the rates change and your confirmed valuation will be based on the gold price on the day we receive your item(s).

      If you’d prefer not to use our postal service, you’re welcome to visit us and use our secure counter service.

  3. Kathi says:

    How much is 18 carat white gold going for?

    • 18ct white gold is valued at the same rate as 18ct yellow gold, both varieties contain 75% gold. The difference in colour is simply down to the other metals that the gold has been alloyed with. Yellow gold is alloyed (mixed) with more copper, whilst white gold is alloyed with less copper and more zinc and/or silver.

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November 30th, 2011 6 Comments » Gold, Selling Tips |