my neighbour's son (which is also my neighbour...) wanna sell me two Sovereign gold coin with 500 bucks each, is this a good price for purchase with? I have no idea with gold coin, only know that coin are 0.23 oz gold inside. one is 1915, the other I forgot... 18XX Thanks!
Without knowing the date of the other one, no. You can use the calculator at the top of the screen to calculate spot price price for Australian coins. With sovereigns pay no more than 10% premium for bullion grade coins.