How to calculate the value of old gold?

ARRANGE BY GOLD PURITY (Karats)

If you want to calculate the value of gold that you want to sell it is important to sort by purity. Purity of gold is expressed in karats, which is essentially the ratio of gold in the alloy in which it is located. Weight ratio of gold alloy and value of the cards gives you value, or the amount of pure gold in the alloy.

If the gold piece of jewelry or other no label for the value of karate then you can do the test with the proper equipment.

HOW DO test to determine the purity of gold?

If you already have the equipment to determine the purity of gold, then we suggest that you buy it or go to one of the goldsmiths, or feed the cells to do the test for you. If you still have the test equipment (bottles with acid rock) then you do the following. Vials with acids common to readings 10, 14, 18 and 22 carat gold, which is to say quite accurately for such use.

Now, if you suspect that you have 14 carat piece of jewelry, rub some of the stone and place it put a single drop of acid from a bottle that reads 14 karat gold. If it is indeed the 14 karat gold then the acid will not show any reaction.If, say, you do not know the purity of gold at all, then you are doing the test that we wrote with the team to repeat the action with acids from the lowest to the highest value of the cards. The first time you see that the acid reacted know that you have previously lower carat value of gold jewelry.

How to determine the weight of gold?

Once you determine the purity of gold, the next step is to weigh gold. It is necessary to weigh the gold each group separately. So if you have two pieces of jewelry 18k gold, and one piece of 10K and 22K gold, the special section weigh 10K gold, 18K gold pieces, and 22K gold. When weighing is important to use precision balance. If you own rights goldsmith's scale, which measures weight in ounces of gold then simply Calculate Ounces to Grams. 1 ounce contains 28.3495231 Gram.

FINALLY, determine the price of GOLD

The price of gold per ounce is changing every moment. However, to learn the current value of gold on the world market is enough to peep on the internet and read the chart.

Gold is valued per troy ounce, which is 31.1 grams of pure gold.

Share the current value of gold per ounce from 01.31 to get one value per gram. The value you get now to be multiplied with the purity of gold you own. For each group of gold that you weigh share maps with 24th Then multiply the result with the current value of gold per gram.

And finally, just multiply the value of gold per gram with the weight of gold that you have weighed in grams.