The $20 gold piece called (Double Eagle) weighs about an ounce.
Not a full ounce, it's about a 1/2 ounce at .48375oz of pure gold.
As of 2-15-10 values is $110.50 price per ounce of gold is $1,005.50
An authentic U.S. Double Eagle ($20) contains .96750oz of pure gold. So it's just under 1 ounce.
No US five dollar gold coin has a ounce of gold in it, post new question and please include a date.
It depends on the denominations of the coins, a silver dollar weighs a lot more than a dime.
Just a bit under an ounce, a double eagle will contain about 0.9675 of a troy ounce of pure gold.
The 1987 5 Dollar gold eagle is a 1/10 ounce bullion coin. What ever the price of gold is per ounce the coin is worth one tenth of the price. Right now gold is $1,164.20 per oz.The coin is worth $116.4. The proof is worth more.
The current price for an ounce of gold is: $1,591.00 A tenth of an ounce of gold is: $159.10
There are three different types of gold American Eagles coins. The one ounce coin costs fifty dollars. The quarter-ounce coin costs ten dollars, and the tenth-ounce coin costs five dollars.
In 1849, one troy ounce of gold was worth $20. A $20 coin contained .9675 ounce of pure gold.
As of today 1-28-10 value is $107.72 the coin is one tenth ounce of pure gold.
$5.85 USD in 2012 with gold @$1600 USD per ounce
It is worth its weight in gold. Gold is worth about $1335 an ounce but your ring is probably less than an ounce and is not pure gold but maybe 14k.
It is worth whatever the gold price is. I'm assuming you have a US 1 oz gold eagle. If you do indeed have a one ounce gold eagle it is worth whatever 1 troy ounce of gold is worth. At the time of writing your coin would be worth about $1350. However, the price of gold fluctuates on a minute by minute basis.
That isn't a real "coin" but instead is known as a private "round" which is essentially just a gold bar in round form. These rounds are only worth their gold content which at the time of writing is about $145, but changes every day depending on the price of gold.
$1 - $100 depending on the coin if it is a $100 coin it is worth $100 if it is a 50 cent coin.
A $5 American Gold Eagle bullion coin is 1/10th of an ounce of pure gold. The New-York market closed at $1691.60 per ounce, so the coin is worth about $169.16.
A troy ounce is about 31 grams and the US standard ounce (avoirdupois) is about 28 grams. When buying coins, or gold or silver, you get more by getting a troy ounce. The price of gold and silver is in troy ounces. So, for example, if gold is $1400 an ounce, that price is for a troy ounce. A 28 gram ounce of gold is not worth $1400.