![]() ![]() ![]() If you're thinking of selling gold, you'll find our rates are significantly higher than any high street retailer and we don't charge testing or refining fees. ![]() While you're on our site, don't forget to check out our up-to-date scrap gold prices. Please contact us if you have any suggestions on its improvement. This project is ongoing and it is acknowledged that there may be errors / omissions. Whilst every effort has been made to ensure its accuracy, we offer no guarantees. Note: The following gold hallmarking identification wizard is supplied without warranty. These markings will be pretty small, so you'll need a magnifying glass to see them properly! If it was made in a country that adheres to the Convention on the Control and Marking of Articles of Precious Metals (otherwise known as the Common Control Mark), you should find a set of hallmarks / stamps. of the Americas, 30th Fooor, New York, N.Y., 10036.Gold-Traders has compiled a gold hallmark identification wizard to help decipher the markings that are stamped on your item. When a consumer purchases jewelry from someone they know and trust and who is established in the community, then it is easy to remedy the problem.įor more information or for a series of free brochures with tips on buying fine jewelry, contact Jewelers of America at 1185 Ave. Regardless of whether the reason is cosmetics or even allergies, salt or sulphur, there is a cure for each type. Home About Handwritten Engraving Handwritten Engravings Engrave Your Own Handwriting on Your Ring Larson Jewelers is now able to truly customize your engraving by letting you not only engrave your personal message inside your wedding band, but to also allow you to engrave in in your own handwriting. Sometimes the jewelry doesn't agree with its owner. ![]() This will elminate all nickel.ĭiscoloration is not the jeweler's fault. If a nickel allergy is causing a reaction, switch from white to yellow gold. If you switch to a different alloy you can solve the problem since most reactions are to the alloy and not the base metal.įor example, jewelry containing a nickel alloy such as white gold can cause a black smudge. To avoid this, rings should be taken off when hands are exposed to salt.Īctual allergies to silver, gold and platinum are really very rare. Simply exposing the hands to salted nuts, crackers or popcorn can cause such corrosion and thus discolor skin. To prevent this, simply remove rings before using soap or detergent and clean the rings frequently.Ĭertain rings, especially those containing copper and silver alloys, will leave a black smudge on the skin if enough salt is present. Such people should remove rings often and use an absorbent powder on their fingers that's free of zinc oxide.Īlso, soap, detergent, wax, polish or cosmetic cream can build up under a ring, causing a type of dermatitis.Ī burning sensation and redness of the skin results. Some people have sulphur in their perspiration that produces a greenish-black stain when it contacts any metal jewelry. Sometimes other skin discolorations are found particularly under rings. These deposits look black because the particles are too small to reflect light. They abrade the softer jewelry metals - gold, silver, platinum and nickel - and leave deposits on the skin. Particles from these cosmetics, when left on the skin, act like fine sandpaper. And calamine, a tinted oxide, is found in some medicated cosmetics and lotions. Rouge and face powders often contain ferric oxide pigments. It has recently been replaced by titanium dioxide, which can be equally hard on jewelry. Zinc oxide is a major white pigment used in face powder, creams and lipstick. The most common of these compounds are zinc oxide, titanium dioxide, ferric oxide and calamine. Known as "black dermographism," which literally means "black writing on the skin," this phenomenon occurs when the cosmetics contain chemical compounds harder than the jewelry metals they contact. What's wrong?According to Jewelers of America, Inc., a national trade association in New York City, more than 99 percent of the time smudging is caused by something other than the quality of the gold.Ĭosmetics are the most common cause of the problem, according to the association. You've worn a gold ring for quite a while, but this time when you take it off there's a black smudge on your finger. ![]()
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