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Fine Jewelry University Articles matching: “Ag stamp silver”
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Fine Jewelry University (Show All FJU Articles)
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Gold Purity and The Differences Between White and Yellow Gold
… colors of gold engagement rings? Yes, Gold is yellow metal but adding copper to gold makes it redder and adding silver, zinc and any other metal makes gold paler. The white color is achieved by a careful choice of the alloying metals, … is a 14 karat gold wedding ring. It is 14/24, which equals 58.3% gold and 41.7% alloy. In most engagement rings the stamp in the ring is 14k or sometimes 585. Both of those stamps mean the wedding ring is 14 karat gold. So the only pure …
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Measuring Gold Weight
… of drugs, precious metals and gemstones. The name comes from the French city of Troyes. The noble metals (gold, silver and platinum) all use the troy system. A troy ounce is 20 pennyweights. The pennyweight was the weight of a silver penny…, their original weight is believed to have been 24 grains. This was gradually reduced, in at least thirteen stages until it reached 7.27 grains by 1816. 24 grains = 1 pennyweight and 20 pennyweights = 1 ounce troy. Even more trivia if …
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Jewelry Solder: What You Should Know
…. For the sake of simplicity, we will focus our discussion on gold jewelry, but the same concepts also apply to silver and platinum as well. If your ring is made out of 14 karat gold, you know that approximately 56% of it is gold with the …, and the chlorine reacted with the base metal alloys in the solder but not with the more noble (tarnish resistant) silver alloys in the rest of the ring. This caused all of the solder to discolor and become visible. After a few days or …
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Jewelry Repair FAQ
…, we mix pure gold with other metals to create different alloys that have different colors and properties. Because silver is naturally a white metal, many people believe it is mixed with pure gold to create white gold. In truth, even a high…content will not result in a white gold alloy. Silver is actually used in 14k yellow gold and a higher percentage of silver is often used to make green gold. So if it isn’t silver, what metal do they use? Most commonly, nickle is used to …
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Laser Jewelry Repair
… even costume jewelry that was unrepairable just a few years ago. Jewelers used to discourage people with sterling silver and CZ pieces that broke from doing repair work. Now they can be done. The laser gives us the ability to fix jewelry … can be laser welded? All the traditional metals can be laser welded, including base metals, karat gold, sterling silver, palladium and platinum, offering a complete array of design, redesigns and repair options. Platinum traditionally is …
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The Difference Between White Gold and Platinum
… that make them unique. How is white gold made? White gold is an alloy of gold and some white metals such as silver, nickel or palladium. The white color is achieved by a careful choice of the alloying metals, which bleach the deep yellow …, then don’t buy it. New white gold rings are usually coated with a hard protective finish of rhodium, a silver-white metal like platinum. The rhodium plating is used to make the white gold look more white. The Rhodium is very white and …
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What to Do When Your Ring Irritates Your Skin
…. The Nickel is what makes the gold white, but it can also cause an allergic reaction. Some people are allergic to silver and we have even known someone to be allergic to pure gold (yes, it’s possible ). Determining the exact cause and …it. This isn’t an allergic reaction but a simple discoloration on top of the skin from the metal. Also, tarnish from silver jewelry can rub off and leave a blackish residue. In both cases, the color will easily wipe or wash off. You can …
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Platinum
… metal in the rivers of Equador. Not realizing its superb qualities, they named it contemptuously platina (little silver) and threw it back into the river to ripen into silver. In 1912 white gold was “invented” in Pforzheim, Germany, as a … makes it hypoallergenic and ideal for those with sensitive skin. All the platinum ever mined would fit in the average living room. Platinum is rare, the coveted treasure of discerning individuals. Platinum is one of the strongest and …
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Alternative Metals for Men’s Jewelry
Until very recently, men only had a handful of choices when choosing a metal for their wedding band. Gold, silver, and platinum are all excellent metals which make great wedding bands, but with the advent of new technologies the “…want to choose one for your wedding band. Titanium Titanium is an excellent metal for wedding bands. It is naturally silver-white in color, but it can be treated to different colors. Titanium is very light weight which is its hallmark …
