1oz British Gold Britannia Coin, 24K Yellow Gold, £100 Face Value
Coin (Bullion/Investment) · Yellow Gold (Investment grade pure gold without alloying metals)
Purity: 24K (999.9 fine gold); 99.99% pure gold content

Type
Coin (Bullion/Investment)
Purity
24K (999.9 fine gold); 99.99% pure gold content
Gold Type
Yellow Gold (Investment grade pure gold without alloying metals)
Weight
31.103 grams (1 Troy Ounce) of pure gold
Description
An iconic example of British minting, the 1oz Gold Britannia is one of the world's most secure bullion coins. The obverse features the fifth definitive portrait of Her Late Majesty Queen Elizabeth II against a guilloché security background. This 24-karat piece combines investment-grade liquidity with high-art numismatic design, making it a staple for global gold portfolios.
Key Features
Fifth portrait of HM Queen Elizabeth II; laser-etched security background; high-purity .9999 gold content; UK Legal Tender status.
Color & Finish
Vivid deep yellow (high purity) with a proof-like finish on the device and a laser-micro-etched textured background providing a shimmering effect
Hallmarks & Stamps
Stamped '100 POUNDS' (face value) and 'ELIZABETH II D G REG F D'. The designer's initials 'J.C.' (Jody Clark) are visible below the neck of the effigy.
Dimensions Estimate
32.69 mm diameter, 2.80 mm thickness (standard 1oz Britannia specifications)
Gemstones & Inlays
None; features anti-counterfeit micro-text and surface animation security textures in the background field
Clasp & Closure
Reeded (grained) edge for security and grip; no mechanical clasp
Chain & Links
Standard vertical reeded edge typical of Royal Mint bullion coins to prevent clipping or filing
Craftsmanship Details
Precision struck using high-pressure dies; features advanced laser-etching for anti-counterfeit patterns; uniform edge reeding and flawless radial symmetry.
Authentication Indicators
Sharpness of the 'J.C.' engraving, perfect radial line consistency, deep yellow luster consistent with 24K, and high-relief striking typical of Royal Mint technology.
Origin & Maker
United Kingdom; The Royal Mint (Llantrisant, Wales)
Era & Period
Contemporary (Elizabeth II fifth portrait era, post-2015 design)
Age Estimate
Likely produced between 2015 and 2022 (featuring the Jody Clark portrait prior to the King Charles III transition)
Cultural Significance
Represents the British monarchy and national identity; serves as a hedge against inflation and is historically significant as legal tender in the UK (exempt from Capital Gains Tax for UK residents).
Condition Notes
Appears to be in Brilliant Uncirculated (BU) or Mint State condition. No visible wear, scratches, or contact marks on the high points of the effigy. Grade: MS68-70 equivalent.
Value Estimate
Current Gold Spot Price + 1% to 5% premium. Primarily valued for gold weight (~$2,000 - $2,400 USD depending on market spot). No significant numismatic rarity premium unless slabbed/graded.
Care & Maintenance
Avoid touching the face of the coin with bare fingers (oils cause toning); store in an airtight acrylic capsule; handle only by the edges using cotton gloves.
Similar Items
South African Krugerrand (22K), Canadian Gold Maple Leaf (24K), American Gold Eagle (22K), Australian Gold Kangaroo (24K).
Interesting Facts
The Britannia was first introduced in 1987. Since 2013, it has been produced in 24-karat gold, a change from the previous 22-karat (crown gold) standard to compete with other global 999.9 bullion.