The Queen's Beasts 2021 UK Gold Proof 10 Kilo Coin

The Royal Mint announced its first ten-kilogram gold commemorative coin in May 2021. The piece closed the Queen's Beasts commemorative collection and became the largest coin the Mint had produced at that date.

Its official name is The Queen's Beasts 2021 UK Gold Proof 10 Kilo Coin. The Mint made one example as part of its Masterworks programme.

Collectors need the full title because the concluding Queen's Beasts design also appeared on smaller proof and bullion coins.

The Royal Mint specification

The published weight is 10,005g rather than 10,000g. The Royal Mint records the alloy as 999 fine gold, so a catalogue should not change it to the 999.9 fineness used for many bullion products.

The presentation limit of one gives the coin a different status from a low-mintage retail issue. The Royal Mint called the piece one of a kind.

A finale for the Queen's Beasts collection

Ten stone statues stood along Queen Elizabeth II's route to Westminster Abbey for her Coronation in 1953. Their heraldry traces parts of the Queen's ancestry.

The Royal Mint began the commemorative coin collection with the Lion of England in 2017, then gave each of the other beasts its own release.

The 2021 completer design brought the ten subjects together. The ten-kilo piece used that conclusion as the subject for a single large-format commission.

The wider Queen's Beasts range includes base-metal, silver and gold proof coins, along with bullion issues. Weight, finish and edition size vary across those products.

Current stock appears in Bullion House's Queen's Beasts coin collection. Bullion House does not claim to own or stock this ten-kilo Masterwork.

Jody Clark's complete design

The Royal Mint credits Jody Clark with both sides of the coin. His royal effigy occupies the centre, with the ten beasts arranged around it.

The group includes lions, a griffin, falcon, bull, yale, greyhound, dragon, unicorn and horse. Each carries a heraldic link to the Royal Family.

A 200mm surface gives the design more space than the standard proof issues. Clark still had to balance relief, fields, lettering and ten detailed subjects within a circular format.

The large format lets a collector examine each beast within a complete composition. It also exposes broad fields where handling marks or surface disturbance can stand out.

Four hundred hours of minting and hand finishing

The Royal Mint reported 400 hours of work across the production process. Its team combined machine engraving, hand preparation, four days of polishing and laser frosting.

Engraving machines cut the design into the large gold surface. A Master Toolmaker then papered and burnished the piece to remove marks from the cutting process.

The team polished the coin before applying laser frosting to selected areas. The contrast between matt design details and reflective fields supports the proof finish.

A conventional press run spreads preparation across many coins. This project concentrated the work on one heavy object that needed support at each handling stage.

The Mint described it as the largest coin in its 1,100-year history at release. Later Royal Mint projects would need a fresh comparison before anyone repeated that claim in the present tense.

Face value, gold value and collector value

The £10,000 face value

The denomination forms part of the coin's legal specification. It does not record the price paid to commission the piece or the amount a collector might receive on sale.

Contained-gold value

A metal calculation starts with the official weight, 999 fineness and a stated gold price. The valuer must identify the price source, time, currency and whether it represents spot, bid or replacement cost.

The calculation changes with the gold market. It leaves out provenance, rarity, condition and demand for the complete object.

Collector value

A buyer may pay for the unique presentation, Royal Mint provenance, subject, condition and chance to acquire a Masterwork with no regular public market.

An asking price shows a seller's position. An insurance figure estimates replacement exposure. A completed arm's-length sale provides stronger market evidence, though one sale may not set the next price.

A valuer may need evidence from private transactions, comparable large-format commissions and demand among collectors with the funds and facilities to hold the coin.

Provenance starts with the Royal Mint record

Useful provenance could include the original invoice, commission correspondence, presentation material and records for each later transfer.

Dates, names and descriptions should agree across the file. A break in the chain calls for an explanation and supporting documents.

The buyer also needs evidence that the seller owns the coin and has authority to transfer it. Possession alone may not reveal a loan, security interest or ownership dispute.

A specialist should compare the physical coin with the documents. Paperwork helps identify the object but cannot replace an inspection.

Condition and handling at 200mm

Proof fields reveal fingerprints, hairlines, friction and cleaning. The 200mm diameter gives those fields far more area than a standard coin.

At 10,005g, the coin needs support during inspection. Poor handling can mark the surface or edge, and a drop could damage both the coin and its presentation equipment.

A condition report should cover the obverse, reverse, edge and any signs of cleaning or contact. It should also record the original holder, case and documents.

Photographs help with an initial review, but lighting can hide fine marks. A buyer considering a substantial transaction should arrange an inspection of the coin itself.

Authenticity requires several checks

The Royal Mint specification provides the starting point. A specialist can compare weight, diameter, design, edge and surface characteristics with that record.

No single photograph or measurement settles the question. A convincing transaction combines physical examination, provenance, title checks and written terms.

Testing should protect the proof surface. The chosen examiner needs experience with high-value modern coins as well as precious-metal verification.

Bullion House's guide to certified and graded coins explains how third-party holders and records support identification. This Masterwork needs advice suited to its scale and unique status.

Collectors comparing the two main grading services can read PCGS vs NGC. The ten-kilo Masterwork needs an inspection process built around its unique scale and provenance.

How a one-off coin may reach the market

A private treaty, specialist auction house or established collector network offers a more plausible route than ordinary retail stock.

A prospective buyer would need the full provenance file, an independent inspection, proof of title, written sale terms and a secure settlement plan.

Transport and storage also need advance planning. The parties should agree who carries the risk at each stage and which insurer covers the coin in transit.

Cross-border movement can add customs, tax and cultural-property questions. Legal advisers and logistics specialists should address those points before the coin moves.

Bullion House can discuss collectable and Queen's Beasts products that it can verify. We make no representation that this exact coin is available through us.

A collectable with a large gold floor

The coin contains a substantial quantity of gold, but the Royal Mint made it as a unique collectable Masterwork. A gold-price calculation supplies one part of a valuation.

Rarity can support a premium without guaranteeing a buyer, a sale date or a higher future price. The transaction still depends on evidence and demand at the time.

Our comparison of gold coins and gold bars gives more context on metal value, premiums and resale. A one-off Masterwork needs a separate collector assessment.