How a dealer values a gold coin
Every valuation starts with the gold inside the coin at today’s price. For a plain bullion coin, that is most of the story. For anything rarer, the dealer also weighs up:
- Rarity: how many were struck, and how many survive.
- Condition: how well the surface, strike and lustre have been preserved.
- Collector demand: some series and dates are simply more wanted than others.
- Grading: a coin authenticated and graded by NGC or PCGS can sell for more than an ungraded one, particularly in the top grades.
- Packaging: original boxes and certificates add to the appeal of proof coins.
A good dealer will tell you which of these applies to your coins and why. If they cannot explain their number, get another quote.
Bullion, proof and certified coins sell differently
- Bullion coins such as sovereigns and Britannias sell close to their gold value. They are the easiest coins to sell and the quickest to value.
- Proof coins were struck in limited numbers with a special finish. They can be worth more than their gold, but only to buyers who want them, and the box and certificate matter.
- Certified coins carry an independent grade. At the top grades, such as MS70 or PF70, the premium over gold can be substantial. See understanding coin grading and MS69 vs MS70.
Where you can sell
| Where | Good for | Watch out for |
|---|---|---|
| A specialist dealer | Speed, certainty, fair valuation of bullion and collectables | Choose one that explains its valuation |
| An auction house | Genuinely rare coins that may attract competition | Fees, delays, and no guaranteed price |
| A private sale | Potentially a higher price | Your risk on payment, identity and posting |
| Online marketplaces | A large audience | Fees, fraud risk, and you handle everything |
For bullion coins, a reputable dealer is almost always the best route: quick, secure, and priced against the live market.
Never clean a coin before selling
This is the single most expensive mistake sellers make. Even a gentle rub with a soft cloth leaves fine scratches that are obvious under magnification, and a cleaned coin is worth noticeably less to a collector. It also cannot be graded as original.
Leave coins exactly as they are, including any toning or marks. A buyer would far rather see honest wear than a coin that has been polished.
What a dealer will ask you for
- Clear photographs of both sides of each coin.
- The year and, for older sovereigns, the mint mark if there is one.
- For certified coins, the grading company and certification number from the label.
- Whether you have the original box and certificate.
- How many coins you want to sell.
- Proof of identity. Dealers are required to check this on larger transactions under anti money laundering rules.
Selling an inherited collection
Inherited coins are often a mix of bullion, proofs and the occasional genuinely scarce piece, and it is easy for the valuable ones to be lumped in with the rest. Keep everything together, do not clean anything, gather any paperwork you can find, and ask for an itemised valuation so you can see how each coin was priced.
Common mistakes
- Cleaning or polishing coins.
- Throwing away boxes, capsules and certificates.
- Assuming every coin is worth only its gold.
- Taking the first offer without a second opinion.
- Removing certified coins from their holders, which destroys the certification.
Questions people ask
Can I sell a single coin?
Yes. Most dealers, including us, will buy a single sovereign or Britannia.
Are sovereigns and Britannias easy to sell?
Very. They are among the most widely traded gold coins in the country.
Should I get my coins graded before selling?
Only if they are rare or likely to grade very highly. For ordinary bullion coins the grading fee usually outweighs any gain.
Is there a best time to sell?
No one can reliably call the gold price. Sell when it suits your circumstances, and get a fair quote on the day.
Will I pay tax when I sell?
British legal tender coins are exempt from Capital Gains Tax for UK residents. Other gold may not be. Take advice on your own position.
Do you buy back coins you sold?
Yes, and we quote the same way we quote when you buy: the metal at today’s price, clearly shown.
This guide is general information, not financial, investment or tax advice. The value of precious metals can go down as well as up.
