The 1777 George III Five Guinea coin is a rare gem from Britain’s past, minted during the American Revolutionary War. Valued at up to $340,000, its scarcity, 22-carat gold content, and historical significance make it a collector’s dream. Whether you’ve inherited an old coin or are diving into numismatics, this coin’s story is captivating. Here’s a simple guide to its design, value, and how to check if you own one.
Historical Significance
Minted in 1777 under King George III, this high-denomination gold coin was used for ceremonial or large transactions, not everyday spending. Its creation coincided with Britain’s war against the American colonies, adding historical weight. The coin’s obverse features the fourth laureate portrait of George III, while the reverse shows a crowned shield of the Royal Arms, symbolizing royal authority. Only a small number were made, with most now in museums or private collections.
Design and Features
- Obverse: George III’s right-facing bust with laurel wreath, inscribed “GEORGIVS III DEI GRATIA” (George III, by the Grace of God).
- Reverse: Crowned shield with royal arms, inscribed “M.B.F.ET.H.REX.F.D.B.ET.L.D.S.R.I.A.T.ET.E.” (King of Great Britain, France, Ireland, Defender of the Faith, etc.).
- Edge: Often plain or inscribed, depending on minting.
Made of 22-carat gold, it weighs 41.9g (1.66 troy ounces) and measures 37mm. Its gold content alone gives a melt value of ~$3,300 at $2,000/ounce, but rarity drives its price far higher.
Why It’s Worth $340,000
- Low mintage: Exact numbers are unknown, but few survive, increasing demand.
- Condition: High-grade coins (PCGS/NGC MS60+) fetch top prices. A 2023 auction saw one sell for $340,000 due to pristine condition and provenance.
- Historical appeal: Ties to George III’s reign and the Revolutionary War boost value.
Circulated coins in Fine condition may fetch $10,000–$20,000, while uncirculated ones hit $100,000–$340,000. Errors like off-center strikes could push values higher, but fakes exist—authentication is key.
How to Check If You Own One
- Look for 1777 date and George III portrait on a large gold coin.
- Verify weight (41.9g) and diameter (37mm) with a scale and caliper.
- Consult a professional at PCGS or NGC for grading and authenticity.
- Check family heirlooms, old safes, or coin collections—some were passed down.
Sell via reputable auction houses like Heritage Auctions or dealers like Chards, but get grading first. eBay listings may help gauge value, but beware of counterfeits.
| Specification | Details |
|---|---|
| Material | 22-carat gold |
| Weight | 41.9g (1.66 troy ounces) |
| Diameter | 37mm |
| Obverse | George III, fourth laureate portrait |
| Reverse | Crowned shield of Royal Arms |
| Value (Circulated) | $10,000–$20,000 |
| Value (Uncirculated) | $100,000–$340,000 |