Great Britain 1/2 Guinea and Guinea 1787 to 1800

King George III minted these coins in gold from 1787 to 1800. The half guinea and guinea look alike, but are different in size.

HALF GUINEA: 22 mm diameter, 0.123 troy ounces gold
GUINEA: 25 mm diameter, 0.246 ounces gold

See this page for the look-alike Spade Guinea, and this page for an almost-exact match made in brass. The coin in our picture comes from respected Australian dealer Noble Numismatics, and CoinQuest thanks Noble for use of their image.

HALF GUINEA
worn: $200 US dollars approximate catalog value
average circulated: $450
well preserved: $750
fully uncirculated: $1500
half guineas dated 1792 are very rare; catalog values exceed $3000 in well preserved condition

GUINEA
worn: $300 US dollars approximate catalog value
average circulated: $400
well preserved: $700
fully uncirculated: $1000

Use our Important Terminology page to convert these catalog values to actual buy and sell values.
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