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Fine Jewelry University Articles matching: “925 Colored stones”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Tourmaline
… tourmaline. Indicolite: is dark blue, dark violetish blue, or dark greenish blue tourmaline. Paraíba: is a copper colored blue, intense violetish blue, or greenish blue tourmaline from Paraíba, Brazil. Chrome tourmaline: is a vibrant and …cut in slices to display this unique property. One of tourmaline’s most distinctive traits is its ability to be multicolored as mentioned above with watermelon tourmaline. The gemological term for this is parti-colored tourmaline. This …
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Gem in the Spotlight: Blue Zircon
…, but it is first in sparkle. The crystal structure of zircon creates one of the liveliest displays found in any colored gem. In fact, before any of the manmade diamond simulates were made, the colorless version of zircon was used in jewelry… fire that sets it apart from other gems. The Gemology of Zircon Why does zircon have so much more fire then other colored gems? Zircon has a high refractive index (1.92-2.01). The refractive index (abbreviated RI) of a gemstone is its …
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Gem in the Spotlight: Jade
… common method of treating jade is polymer-impregnation. This can be used in conjunction with dye to dye lighter colored material to a darker, more desirable green, purple, or orange. Finally, acids can be used to bleach dark material …Jade has one of the richest heritages of all gemstones. People have been using jade from as early as 6,000 BC, and it has been an incredibly important part of Asian, … far are dyed quartz, glass, and plastic. These imitations can be identified quickly by a trained gemologist. Other stones that have been confused with jade over the years are chrysoprase, serpentine, maw sit sit, and hydrogrossular garnet…
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Gem in the Spotlight: Aquamarine
… was believed to guarantee a happy marriage and inspire mutual fidelity in newlyweds. Notable Aquamarine Gemstones The largest gem-quality aquamarine gemstone ever mined was 19 inches long. The largest cut aquamarine is named the Dom Pedro …. Her tiara is an exquisite piece of platinum jewelry that has evolved several times over the years. Having larger stones swapped in and exchanging her pendant for the center stone in the tiara. The tiara is one of only a few items of …
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Gem in the Spotlight: Spinel
…For years spinel has been confused with other gems and even today is often used as a substitute for similar looking stones. In recent years, spinel has started to move out of the shadows and be appreciated in its own right, and we can see … found in. Because of how easily it can be created in a lab, synthetic spinel has been used to imitate many other gemstones (ruby, sapphire, tourmaline, zircon, etc.). In fact, the ubiquity of synthetic spinel may be part of the reason why …
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Gem in the Spotlight: Morganite
… treatment once it has been enhanced. As you may know, the most important factor in determining the value of a colored gemstone is: color. Morganite of a pure, medium pink color is the most valuable. If the pink color is too light the stone …. It is the subtle, understated nature of Morganite’s color that sets it apart from many of the more popular gemstones. Morganite has an impressive family tree. It is a beryl gem which puts it in the same family as emerald and aquamarine. …
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Gem in the Spotlight: Iolite
… Viking. The Gemology of Iolite Iolite is the gem variety of the mineral Cordierite. Iolite was once known as a “water sapphire”. Dichroite is another synonym for iolite. Dichroite is a Greek word which loosely translates as two-colored rock. This refers to iolite’s pleochroic nature. iolite cannot be heat treated to enhance its color. The color you see is the natural color of the stone when it was first discovered. Coming in at 7 to 7.5 on the Mohs hardness scale, iolite …
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Gem in the Spotlight: Topaz
… for glasses and cameras. It is also one of the processes that is used to create lab grown diamonds . A thin, multi-colored film is bonded on the surface of colorless topaz to create all the colors you see in Mystic Topaz. These enhanced … be taken to avoid rapid cooling or heating. Topaz is the birthstone for November and blue topaz is one of the birthstones for December. We have a great variety of topaz jewelry in stock at our everyday low prices. They make great gifts for…
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Gem in the Spotlight: Alexandrite
…emerald because of how exceptional the green was in daylight. Named after the Russian prince Alexander II, the first stones discovered were of unmatched quality and had a dramatic color change. While alexandrite is still being mined today … high-quality stone will last for generations. Why Alexandrite? Alexandrite is simply one of the most magnificent gemstones that exists. Its almost magical ability to change color has captivated our hearts and minds for generations. …
