Presumably, you refer to the 1 Dollar coin(?). An Australian 1984 1 Dollar coin, uncirculated and in absolute mint condition could fetch up to $15 AUD. They are still in circulation, so unless they are part of a proof set or as previously described, they are worth 1 Dollar. There were over 186 million minted. A reputable coin dealer will be able to advise a more accurate quotation.
It is a gold coin named Centenario, worth USD$1,244.
The Australian One Dollar coin is made from a copper/aluminium/nickel alloy and has a gold appearance. It weighs 9 grams and is worth One Dollar. The Royal Australian Mint also produces a number of bullion coins every year of various weights and values. For a valuation on any of these coins, you would need to provide the denomination and the theme of the coin.
An Australian 1984 Two Hundred Dollar gold coin (Koala), uncirculated and in absolute mint condition could fetch up to $420 AUD. There were 49,200 minted. An Australian 1984 Two Hundred Dollar gold coin (Proof)(Koala), uncirculated and in absolute mint condition could fetch up to $440 AUD. There were 12,584 minted. Any valuation presumes that the coin is in the original packaging and remains in mint condition. A reputable coin dealer will be able to give a more accurate valuation.
What type of Australian gold coin? Do you refer to a gold coloured coin such as the One and Two Dollar coins, or a bullion coin? If you refer to a bullion coin, please provide the weight and theme of the coin.
If the coin is actually made from gold, it will be worth whatever the gold content is worth. If it is a coin of gold appearance, it will maybe be worth whatever you paid for it.
Australia did not issue a One Dollar coin until 1984. The "Cairns to Gold Coast Pacific 1000" race coins were sold as souvenirs of the event and are possibly not worth more than the purchase price.
Gold is sold by the ounce, ergo, whatever coin you possess is worth at a minimum its weight in ounces. On the other hand, the coin itself might be worth more as a coin if it came from any significant era in history. But if you have a modern US, Canadian, Australian or New Zealand $1 coin, none of these contain any gold. They're just brass and only worth face value.
The Australian Ten Dollar coin is a Non-Circulating Legal Tender coin issued annually by the Royal Australian Mint in a variety of different metals including gold, silver and bi-metal. The value of any coin would be dependant on the year, the metal and the theme of the coin.
The coin is a Sacagawea dollar, it has no gold and is worth $1.00
The Australian Florin was never minted in gold.
The coin has .12094oz of pure gold, the coin is worth $165.40 just for the gold.
None. There is no gold in any Australian general circulation coin.