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Fine Jewelry University Articles matching: “orange stoneold”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Garnet
…’s pizzazz energizes the gloomiest day. Garnet varieties brighten the world in colors of yellow to gold, bright orange to true orange, brown to cinnamon, pinks to greens, and of course many shades of red. Garnets are given as symbols of … seeds. Garnet is really a group of gemstones. The pyrope, almandine and spessartite are the red – brown to orange sometimes with a tint of violet varieties. The grossular, demantoid and uvarovite are the Emerald green to yellow type. …
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Gem in the Spotlight: Topaz
…, topaz comes in a huge variety of colors. Some of these varieties have their own names: Imperial Topaz: When both orange and red colors are present (although much of the jewelry industry might call golden topaz imperial). Golden Topaz: … the coating can be scratched and the gem ruined very easily. Mystic topaz comes in virtually any color from sunset orange, to violet, to green. These coatings can allow topaz to be any color of your preference. Topaz itself is a hard …
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Gem in the Spotlight: Blue Zircon
…. Blue zircon is the most popular color. But, zircon can be almost any color you can imagine including red, yellow, orange, brown, green, champagne, golden, saffron, and colorless. Zircon colors are pure and have that distinctive fire that … colors, and Zircon is no exception. Here are examples of a few of them. Jacinth or Hyacinth refers to the yellow, orange, brown, or red variety of Zircon. Jargon is the colorless, pale gray, or pale yellow variety of Zircon. Matura Diamond…
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Gem in the Spotlight: Opal
… any opal from Ethiopia. That said, the term is usually used to refer to crystal opal that has a slight yellowish to orange body color. Many Ethiopian opals are hydrophane (see above). Other names for this kind of opal include: jelly opal … avoid this term and use one of the more specific names whenever possible. Mexican Fire Opal: Known for its vibrant orange body color, many of these stones have little to no play of color. The best stones have strong greens and blues that …
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Gem in the Spotlight: Sapphire
…’s color is used before the word sapphire. Sapphire, a variety of corundum, comes in all colors except red (the red variety being known as ruby), but is especially popular in deep blue. Fancy colored sapphires including pink, green, orange, and golden yellow are magnificent in any jewelry. See More on Etsy › With the exception of the diamond, which measures 10 on the Mohs scale, sapphire and ruby (9 on the Mohs scale) are the toughest and most durable gemstones. This …
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Gem in the Spotlight: Morganite
… refractive index is 1.560 – 1.600, and its specific gravity is 2.67 – 2.90. These characteristics help identify Morganite as beryl and distinguish it from other pink gemstones. Morganite is commonly heat treated to remove yellow and orange hues and to achieve a purely pink stone. This type of enhancement has an excellent stability rating, and the stone requires no special treatment once it has been enhanced. As you may know, the most important factor in determining the …
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Gem in the Spotlight: Alexandrite
… that depending on the light source the stone will reflect more of the accent colors of light. Since fluorescent light has a stronger greenish-blue component, the stone appears greener. Under candlelight, which has a much stronger red/orange component, the stone will appear redder. Alexandrite has a refractive index of 1.746-1.755 with an average birefringence of .010. It has a specific gravity of 3.73 and a Mohs hardness of 8.5. Because of its high hardness, alexandrite …
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Gem in the Spotlight: Quartz
… names are just different ways of saying “Quartz!” Crystal Name Color Amethyst Purple Citrine Yellow to reddish orange to brown, greenish yellow Prasiolite Green (often mistakenly referred to as Green Amethyst) Rock Quartz Clear Rose Quartz… quartz Rutilated Quartz Typically colorless and can have black or gold needle inclusions Ametrine Purple and yellow/orange color zoning (a combination of “Amethyst” and “Citrine”) Bi-color Quartz Colorless and any other color like brown, …
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Fake Diamonds: The Great Diamond Attack
… lower color and making them more colorless. Next they can take a diamond and make them have intense colors. The colors they are making are somewhat unusual for the diamond trade. The common colors are a bright green and yellow/orange stones. Some call the colors antifreeze looking. Is this process a simple treatment of a natural stone or is it the manufacturing of a diamond using some natural elements? Regardless of way the industry calls it, I feel strongly that the …
