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Fine Jewelry University Articles matching: “GB 375 whats it mean”
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Fine Jewelry University (Show All FJU Articles)
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Diamond Brokering
… us. Our brokerage has links to hundreds of diamond importers, wholesalers, dealers and traders. We use high-tech means to reach the most sophisticated companies and low-tech to mine even one person operations all with the goal of finding…Serving you is our passion. Making our expertise available to you coupled with our value hunting system makes the diamond buying experience a positive one. Please feel free to ask any questions … you want at the very best price available. Our value hunting system helps with: Locating the most reliable source with the best price Finding independent certified diamonds Locating correctly graded non-cert diamonds Finding the most …
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Gem in the Spotlight: Alexandrite
…’s crystal structure. It absorbs most wavelengths of light very well, only transmitting green and red light. This means that depending on the light source the stone will reflect more of the accent colors of light. Since fluorescent light … day, ruby by night, more expensive than diamond and more illustrious than sapphire, emerald, or even ruby, alexandrite has been known around the world as one of the most sought-after gems for the better part of 200 years. But, what …
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Gem in the Spotlight: Iolite
… and deeper than many tanzanites. Iolite’s name comes from its violet color. It is from the Greek word “ios” meaning violet. Unlike many other popular gems, iolite cannot be heat treated to enhance its color. The color you see is the …Iolite is maybe not the first gemstone people think of for their blue-violet jewelry, but it should be near the top of the… was first discovered. This adds value to many gem buyers who don’t want a treated gemstone. Color Me Impressed Iolite is strongly pleochroic and will exhibit a different color when viewed at different angles. Pleochroism is an optical…
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What to Do When Your Ring Irritates Your Skin
… a change in the skin’s chemical composition. Adding to the confusion, metal allergies can develop at any age. This means that even if nothing changed it is possible to suddenly become allergic to jewelry that you have been wearing …Nothing is more frustrating than being unable to wear your engagement ring or other jewelry because it irritates your skin. Don’t worry. There are many options you have when faced with this problem. The first step is to… different solutions if you don’t know what the true source of the problem is. There are two main types of irritation: 1) Physical irritation caused by the metal rubbing against the skin, and 2) allergic reactions to jewelry. These …
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Caring for and Cleaning Your Jewelry
… from touching one another when you wear or store them. Diamonds are crystals that grow with a cleavage plane. This means a sharp blow on a vulnerable spot can chip or break the stone. This does not mean that diamonds are not very durable…How to Clean Jewelry A diamond’s spectacular beauty is due to its light show. Diamonds make light reflect, show its many colors, and dazzle. To perform its magic the diamond must be… your diamond jewelry at home is simple and rewarding. Use a soft toothbrush and mild soap then rinse thoroughly with warm water. The key to diamond cleaning is the underneath side or pavilion. The light needs a clean surface to bounce …
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Gem in the Spotlight: Ruby
…precious stones” in the ancient language of Sanskrit. Rubies get their name from the Latin word “ruber,” which means red. This is also where rubellite tourmaline (the red variety of tourmaline) gets its name. Pliny the Elder mentioned …For much of human history, rubies have been the most prized gemstone. But, what is it about this red gem that has captivated our hearts and minds for so long? Is it ruby’s color? It’s rarity, and …, with arguably the richest history of all gemstones. Gemology of Ruby Rubies are in the corundum gem family along with sapphires. Corundum is an extremely durable form of aluminum oxide with a Moh’s hardness of 9. This makes ruby one …
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Jewelry Repair FAQ
…. Molecules are the key to understanding gold plating. The amount of gold used is on the molecular level. This means that only a very thin layer of gold covers the surface. Gold plating produces a layer of gold around 0.5 microns thick. A… the new stone match the old one? We get this question all the time. People want their jewelry to look just the way it did before a gemstone fell out; who wouldn’t? That’s why we have literally 100s of carats of loose diamonds, …
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The Magic of Polarized Light
…of the molecules are aligned with each other so only a certain vibrational direction of light can pass through. This means that all of the light that passes through a polarizing filter is “polarized.” Common Uses for Polarizing Filters … out a different direction of light, and the second one is filtering out the opposite direction of the first. This means that all of the light that makes it through the first filter is then blocked by the second one. Placing a gemstone in…
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Alternative Metals for Men’s Jewelry
… to other jewelry metals can usually wear tungsten jewelry without issue. Tungsten comes from a Swedish term meaning “heavy stone.” It is element 74 on the periodic table with the chemical symbol “W”. The “W” comes from its earlier name, …, or platinum. Its extreme hardness makes it resistant to scratching, but it does have brittle properties. This means that if enough pressure is applied to a tungsten wedding ring, the ring will crack or break instead of bending. This is …
