The price fluctuation of gold and that the gold can be 14k 18k 24k or some other percentage of gold makes an answer difficult. At 14k the gold is worth 60 % of it weigh at the current gold exchange rate 18K 75% and 24k 100%. 4 grams is 1/7 of an ounce only when the gold is 24K
As of the time this answer was written, gold was going for a bit under $40 per gram. 24K gold is pure gold, so 100 milligrams (0.1g) would be worth about $4.
only 3/4 or 75% gold solid gold is 24k
Today, the fine gold price is around US $40. 14 karat gold is 58.5% of the fine gold. 58.5% of 4 grams is 2.34 grams. 2.34 grams × US $40 = US $93.60 [June 2010]
Currently, this amount has an estimated value of $102.10
The worth of gold as metal inside can be determined by its weight. Ring size 6 does not say how wide it is, or how heavy, but let us assume it is about 4 grams. In the 4 grams of 10 karat ring, you would have about 1.66 grams of fine gold. Today, the price per gram is about US $40. The gold in that ring of assumed 4 grams, would be worth about US $66, but you would get somewhat less in the jewelry store.
Firstly karats is a ratio of gold purity by weight measure out of 24. So 2.8 grams of 14 karat gold is actually: 2.8/24 * 14 = 1.63 grams of pure gold As of July 4, 2010, gold is worth about $38,900/Kg. So 1.63 grams is worth: 38900/1000 * 1.63 = $63
4 grams
Lucky you! That's worth about $300 USD!
7.1 grams of gold is about 1/4 ounce of gold, the purity defines the cost per ounce divided by 4.
A pennyweight is 1.555 gramsA gram of gold is worth about $30 US dollarsTherefore a pennyweight of gold is worth about $46.65 US dollars(price of gold fluctates daily, so this is only an approximation)
As of 4/7/2010, 40.8 Grams of 14 karat gold would be worth $870.73. That is with the price of gold currently at $1137.95 an ounce and with 14 karat at a 58.33% purity along with 40.8 Grams equalling 1.31 ounces. Hope that helps. Might have been too much info haha