How to determine if a necklace is real gold
Gold is a brilliant and rare metallic element that reflects light, even in the shadows. Mankind has always treasured among the precious metals. Gold is durable, flexible, and will not rust, corrode or opaque, making it ideal for jewelry. Fire tests are the only reliable way to determine if a piece of jewelry is real gold. A litmus test compares a real element of gold “known” one more questionable. You can also perform tests of (carefully) at home, by a jeweler or a laboratory. Also, a jeweler may also be able to tell you where to buy a test kit. A less reliable method to determine if a necklace is real gold is to examine the quality registration or stamping (stamp).
Today, there are prints more misleading than in the past, according to David West Nytch, a master goldsmith and gemologist New York. To be absolutely sure whether a piece of jewelry is pure gold, take it to a reputable jeweler, as recommended Nytch. The carat gold describe the percentage found in an article, and the higher the number, the more of the metal will contain. Usually, it usually mixed with copper, silver, zinc and other metals to harden and create variations in color. Nytch advises consumers: “If you see a peeling or if you see that gold fades, I know very suspicious to a solid piece of gold will not pass this, you may see a difference in color.”.
Acid Test No. 1
Put on rubber gloves and protective clothing before handling nitric acid, which is dangerous and can damage the skin and clothing.
Rub the real gold necklace on a blackboard or on an unglazed ceramic. It will leave a mark, in fact, transfer a small amount of metal on the surface.
Rub the questionable gold necklace on the same flat surface above , do it the same way with the piece of real gold.
Apply a few drops of nitric acid in each rubbed.
Compare the reactions and colors in both brands. If the necklace is real gold, there may be a small reaction or that there is no, and the color of both brands will be similar. If it was not real gold, dissolve the mark left by the acid rubbed. The gold-standard or a few carats leave a darker color compared to the color of the item is real gold.
Acid Test No. 2
Use a small file on the necklace in question.
Find a place that does not see to make a small rayon.
Using a toothpick, place a drop of nitric acid on the scratch you just made.
Consider the reaction. If there were such, then it indicates that it is real gold. Had a milky reaction, then the necklace has a gold layer over silver. If the scrape becomes bright green, then this is a base metal. If the color is dark green, the necklace is gold plated with a gold layer on the base metal.
Rinse thoroughly and gloves jewel with fresh running water.
Find a good lighting that allows you to examine your jewel.
Inspect the brooch necklace to find the seal, which is a small inscription or print numbers and the letter K.
Look very closely with a common seal with a magnifying glass or jeweler.
Determine the purity of gold from the number of carats read the label.
Use the following instructions: • 24K • 18K pure gold is 75 percent gold is mixed with one or more metals • 14K is 58.3 percent gold mixed with other metals • 12K is 50 percent gold mixed with other metals • 10K is 41.7 per cent gold mixed with other metals