Things You'll Need
Instructions
Determine the amount of gold in your coin. As with most coins from the period in which the Australian gold sovereign was struck (1899-1931), when gold or silver determined the value of currency, your coin should include the exact weight of gold in the piece written somewhere on the coin. Use a magnifying glass if you have any trouble locating the gold weight.
Investigate the current price of gold on the market. Gold is a commodity with a price determined by market supply and demand. Once you have determined the amount of gold in your coin, investigate the price of gold to define the minimum value of your coin. For instance, if your coin contains one ounce of gold and gold is worth $300 an ounce, the minimum value you should accept for your coin is $300.
Determine the date your coin was minted. Once again, the date should be prominently displayed somewhere on the coin, but you should use a magnifying glass if you have trouble seeing it.
Assess the condition of your coin. Is all the lettering clear? Is the rim crisp or worn down? Is the coin still shiny and are minor details like the hair on the bust still visible? The condition of a coin is a critical part of valuation for collectors.
Consult a reference for coin valuation to determine the collecting value of your coin. Various collector groups and numismatic societies publish reference materials that estimate the value of coins to collectors based on the year minted, the rarity of a particular date or type of coin and the condition of the piece. Simply match the year your coin was minted, the type of coin and the condition to determine an estimate market value.
Call numerous coin dealers and ask for offers. As with most collectibles, coin valuations are a function of market conditions like supply and demand. The ultimate price of a coin depends on how much collectors are willing to pay, but, once you have a general idea of how much your coin should be worth, you can discuss with investors and collectors to determine a final price.