To qualify as an Australian coin, and not a sovereign or half sovereign from Great Britain, an S=Sydney, M=Melbourne, or P=Perth mint mark must appear on the dragonslayer side just above the date. The mint marks are difficult to see, so check closely. If your coin does not have an S, M, or P, click to this CoinQuest link for evaluation.
The half sovereigns from Australia are generally worth more than their counterparts from Great Britain; the sovereigs are about the same. As with all gold coins, the minimum they can be worth is their base value (BV), or the current price of the gold they contain.
HALF SOVEREIGN: 19 mm diameter, 0.1177 troy ounces gold
SOVEREIGN: 22 mm diameter, 0.2353 troy ounces gold
Find the current price of gold on web sites such as kitco.com.
For *common date* Aussie coins, figure these as approximate catalog values:
average circulated: BV + $100 US dollars
well preserved: BV + $400
fully uncirculated: BV + $3000
average circulated: BV
well preserved: BV + $50
fully uncirculated: BV + $100
There are two *better date* coins in these series.
1893M: $10000 in well preserved condition
1899P: $1000 in well preserved condition
There are also valuable proof coins in this series, but we do not cover proofs here on CoinQuest. If you think you may have a proof coin, consult a knowledgeable collector or dealer.