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Fine Jewelry University Articles matching: “Green gem”

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Fine Jewelry University (Show All FJU Articles)

  1. Old mine cut diamond example

    The History of Diamond Cuts

    … pyramids stuck together at the base. Naturally, the first attempts to enhance diamonds were to polish the natural gem. The “point cut” is the polishing of a natural octahedral diamond. Interesting fact #1 about diamond cuts: cutting a … cut and polished in one step. Since only diamond can cut diamond, the diamond cutter must take care to polish the gem at the same time. That is one of the reasons diamonds are expensive. Diamond cutters are highly trained and need a lot…

  2. Early attempts at making lab grown diamonds

    How Are Lab Grown Diamonds Made?

    … to turn lead into gold, many have tried to achieve this impressive feat. We have only recently been able to produce gem quality, lab grown diamonds that are large enough to be used in jewelry. But, how is it done? Early Efforts … so making artificial carbon crystal was the problem of lab grown diamonds. For decades, manufacturers of synthetic gemstones tried growing diamonds like they grew rubies, sapphires, and emeralds. It failed. Then they had the idea to …

  3. Polarized light diagram

    The Magic of Polarized Light

    …exactly, and why is my jeweler writing about it? It turns out that polarized light is actually a very useful tool in gemology, and in this article we’ll show you why. What Is Polarized Light? Light from almost any light source travels in… directions, and the vibrations around each ray of light are random. This is called unpolarized light. In the gemological world, this would be any light source that we use on a regular basis (e.g. overhead reflected light or a daylight …

  4. Frequently Asked Question about Jewelry

    … in general. If you have a question you’d like answered, please contact us and we would be happy to help. What is a Gemologist? A gemologist is one who studies gems and jewelry scientifically, who knows and identifies them, can judge the… their beauty and value, and can apply this knowledge. This training and experience combine to make a gemologist. A gemologist like other professionals must keep up with current advancements in the field. The pace of change in the gem

  5. Nickel in jewelry can cause allergic reactions

    What to Do When Your Ring Irritates Your Skin

    … can begin hours or even days after contact and may last for several weeks. Some people’s skin even turns black or green when they wear certain jewelry. One of the most common metal allergies is Nickel which is added to pure gold in many … necessarily allergies. For example, copper or metals that contain copper (like bronze) can cause the skin to turn green where the metal comes in contact with it. This isn’t an allergic reaction but a simple discoloration on top of the …

  6. A globe icon with the beginning of a web address

    How to Sell Jewelry on eBay and Other Websites

    … in case the piece is damaged in transit. You must have a great description of your jewelry especially a nice gem because they could return it with a different gem (they could switch the diamond with a lower grade or even a CZ and claim … for your gold and jewelry, no waiting for it to sell, no photographing, describing, pricing, no hassle at all. Our gemologist buyers are fast, friendly, and professional, and our 20+ years in Sacramento mean you know you’re getting a …

  7. Learn Secret Diamond Buying Skills From a Professional Diamond Buyer

    … one the center of their universe. A diamond’s beauty energizes the whole person with a light show unique in the gem world. Diamonds are unique, just like the love it expresses, but unlike love we must put a value on a diamond. … can refer to the shape of the stone. Round, Marquee, Pear, Oval, Square, and Princess all describe the shape of the gem. Round diamonds are by far the most popular cut in diamonds under three carat. The diamond’s shape should be one of …

  8. Retipping is an important jewelry repair technique

    Jewelry Repair FAQ

    …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 make white gold. However, … related questions. If you have a question that you don’t see answered here, please contact us and let us know. A gemstone fell out of my ring. Will the new stone match the old one? We get this question all the time. People want their …

  9. A diamond with cartoon red blood over the top of it

    What are “Blood Diamonds”?

    …, they really hurt the developing countries that are benefiting from the legitimate sale of diamonds. We at Arden Jewelers have been knowledgeable of the conflict diamond issue for years. We work hard to make sure every diamond and gem is legitimate. We want our clients and friend’s jewelry to be a source of pride, not of guilt. We are serious about not helping the evil doers in our world, by buying diamonds from illegal or immoral sources. Thank you for your trust in …

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