Royal Mint
2023 Coronation of King Charles III 2oz Gold Matte Proof Coin | Mint Error – Reverse Struck Through | NGC PF69 Matte
£12,730 by bank transfer save £260
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About this coin
2023 Coronation of King Charles III 2oz Gold Matte Proof Coin – Mint Error, Reverse Struck Through – NGC PF69 Matte
This is a 2023 Coronation 2oz Gold Matte Proof with a genuine mint error. NGC has certified it MINT ERROR PF 69 MATTE with the attribution "Reverse Struck Thru". A black synthetic fibre was caught between the die and the gold blank during the strike and is still embedded in the upper rim of the reverse next to the letter T of "THE". It has left an incuse impression and a flattened area where the object interrupted the strike. The rest of the coin is as issued.
To our knowledge this is the only mint error known on the 2023 Coronation 2oz gold coin. We have not found another reported example. A retained struck-through of this kind is rarely seen on any modern gold coin. Read the full story in our article on the retained strike-through error.
It is two rarities in one coin. The matte proof 2oz Coronation is a very small issue with a reported mintage of 97 against 306 for the standard mirror-finish proof. On top of that each struck-through error is unique to the coin that carries it.
The matte proof finish gives a soft satin surface that shows relief and detail rather than mirrored contrast. The reverse carries John Bergdahl's Royal Arms design with the inscription THE CORONATION OF KING CHARLES III 6 MAY 2023. The obverse carries Martin Jennings' first crowned coinage portrait of King Charles III.
Why PF69 Is the Top Grade for a Coin Like This
A grade of 70 is practically unobtainable on a coin with a genuine struck-through error. NGC's own guidance on struck-throughs says that large examples can be attributed as Mint Errors but are not eligible for a grade of 70. NGC grades the coin on its remaining surfaces and records the error on the label. PF69 Matte is the second-highest grade NGC awards and effectively the ceiling for a coin like this.
We did not request conservation before grading. The process could have removed the fibre embedded in the rim. The fibre is what makes this coin unique so it was left untouched. The coin was graded in October 2026 and is supplied sealed in a tamper-evident NGC holder exactly as it was graded.
Coin Highlights
- Genuine mint error: NGC "Mint Error" designation with the "Reverse Struck Thru" attribution
- Black synthetic fibre still embedded in the upper rim of the reverse next to the T of "THE"
- Submitted without conservation so the embedded fibre is untouched
- Believed to be the only known mint error of this coin
- PF69 Matte with a Mint Error attribution: a grade of 70 is practically unobtainable on a genuine struck-through
- Matte proof finish with a reported mintage of 97 against 306 for the standard proof
- Struck in two troy ounces of 999.9 fine gold
- Obverse: Martin Jennings' first crowned coinage portrait of King Charles III
- Reverse: John Bergdahl's Royal Arms design
- Encapsulated in a tamper-evident NGC holder for authenticity and protection
Specifications
| Year | 2023 |
| Mint | The Royal Mint, Llantrisant |
| Composition | 999.9 fine gold (24 carat) |
| Weight | 62.42 grams (2 troy oz) |
| Diameter | 40.00 mm |
| Finish | Matte Proof |
| Obverse Designer | Martin Jennings (first crowned portrait) |
| Reverse Designer | John Bergdahl (Royal Arms) |
| Reported Matte Mintage | 97 (standard proof maximum 306) |
| Error | Retained struck-through fibre on the upper rim of the reverse next to the T of "THE" |
| Conservation | None requested (fibre left in place) |
| Grading | NGC Mint Error PF69 Matte |
Why This Coin Stands Out
The Coronation 2oz matte proof is one of the smallest gold issues of the reign and errors on gold proof-quality coins are seldom seen. This example combines the two with an attribution from NGC and an untouched retained fibre. It suits collectors of the Coronation range and anyone who collects mint errors in gold.
As UK legal tender gold this coin is exempt from Capital Gains Tax for UK residents and free from VAT under current investment gold rules. Browse our full range of graded gold Sovereigns to explore more rare and certified coins.
Frequently Asked Questions
Why is this coin graded PF69 and not PF70?
A grade of 70 is practically unobtainable on a coin with a genuine struck-through error. NGC's guidance says large struck-throughs can be attributed as Mint Errors but are not eligible for a grade of 70. PF69 Matte with a Mint Error attribution is effectively the top outcome for a coin like this.
Has the coin been conserved?
No. We did not request conservation before grading because it could have removed the fibre embedded in the rim. The coin is exactly as NGC graded it.
Is this the only known mint error of this coin?
To our knowledge yes. We have not found another reported example of a mint error on the 2023 Coronation 2oz gold coin.
Have a question?
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Frequently asked questions
Do you offer a discount for paying by bank transfer?
Yes. Pay by bank transfer and you'll save 2% on orders of £250 or more.
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Every coin page shows its bank transfer price just under the main price, so you'll know the exact amount before you order. Questions? Call or message us on 07340 710102.
Delivery & returns
Delivery Information
We offer free insured delivery across the UK on all orders. Every coin is carefully inspected, securely packaged, and sent using Royal Mail Special Delivery - a fully tracked, next-day service that requires a signature on receipt.
All parcels are shipped discreetly and fully insured for peace of mind.
We currently do not ship internationally. Orders can only be delivered to the UK address provided at checkout, and we’re unable to send to PO Box addresses.
We aim to dispatch all orders within one business day of receiving cleared payment. Once your order has been dispatched, you’ll receive tracking details so you can monitor its progress.
Returns Policy
For non-bullion items (such as proof coins, graded coins or accessories), we’re happy to accept returns within 14 days of receipt if you feel your coin is not as described and provided the item is returned in its original condition, please contact us and we’ll be glad to help.
If an item is returned for reasons other than being not as described, return postage will be the responsibility of the buyer.
Important Notes
- All returns must be pre-authorised by our customer service team.
- Please use a tracked and insured service when sending items back to us, as we cannot accept liability for goods lost or damaged in transit.
- For full details, please see our Terms & Conditions or contact us directly with any questions.
Payment & verification information
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Please note that we do not accept credit cards. This policy helps us keep prices competitive and ensures all transactions remain low-risk and fully traceable.
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Every payment method we accept is fully secure, encrypted and protected. Once payment is confirmed, your order will be prepared for dispatch within one business day.
Can I verify the coin's grade?
Yes. Every NGC-certified coin has a unique certification number visible on the slab label. You can verify the grade, coin details and population data at NGCcoin.uk using the cert number shown.
What is the population or top pop figure?
The NGC census records how many examples of each coin have been graded at each level. A Top Pop coin means no other example has achieved a higher grade — making it the finest certified specimen in existence for that issue.
Do you offer part exchange?
Yes. We accept all proof coins and graded coins in part exchange, including NGC and PCGS certified coins, boxed gold and silver proofs, and proof sets.
Tell us what you'd like to trade and which coin you have your eye on, and we'll give you a bespoke cost-to-change valuation.
The Seventy Select
Graded 70.Nothing less.
Every coin here is graded PF70 Ultra Cameo or MS70, the highest grade NGC and PCGS award.
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1995 Gold Proof Half Sovereign PF70 Ultra Cameo
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- 216 coins in the collection View the collection
