precision cut gemstones
By
Ceylon Natural Gems
Precision Cut Amethyst
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Quartz, the most common single mineral includes many varieties and sub-varieties. Amethyst is the name given to the variety which is the most expensive, transparent and have range in light to dark purple in color. Although amethyst is found on almost every continent the dark transparent and clean stones are relatively rare and always in big demand.
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Color Key: Purple to Violet |
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Refractive Index: 1.554 - 1.553 |
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Amethyst, the traditional birthstone for the month of February. Designers celebrate amethyst as the ideal choice for jewelry because of its regal color, variety of sizes and shapes, affordability and wide tonal range from light to dark purple.
"Fine amethysts are featured in the British Crown Jewels and were also a favorite of Catherine the Great and Egyptian royalty. Great thinkers like Leonardo da Vinci believed that amethyst could dissipate evil thoughts and quicken the intelligence."
Precision Cut Honey Quartz
Honey Quartz is another member of Quartz family gem stone.Name of honey quartz used for traders as a trading name originally untreated honey quartz means another colour grade of smokey quartz. Some of Smokey quartz can found yellow to yellowish brown. But Most of the honey quartz are heat treated most of the jewelers used honey quartz instead of citrine. Because unlike Citrine honey quartz have large variety of colour range.
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Color Key: Yellow,yellow-brown, orange,dark orange- brown, reddish-brown |
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Refractive Index: 1.554 - 1.553 |
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however these are new type of Quartz that is becoming very popular in jewelry industry. It is the most affordable of all the earth-toned gemstone beautifull gem stone with white gold and Silver.
Precision Cut Garnet
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Garnet is not a single mineral, but a group contains closely related, isomorphous minerals that form a series with each other. The Garnet members form intermediary minerals between each member, and may even intergrow within a single crystal. The Garnets vary only slightly in physical properties, and some of the members may be so similar that they are indistinguishable from one another without x-ray analysis. The common Garnets can be divided into two subgroups: Group 1: Garnets containing aluminum (Al) as their second element.These include Pyrope, Almandine, and Spessartine. ("Pyralspite") Group 2: Garnets containing calcium (Ca) as their first element. These include Uvarovite, Grossular, and Andradite. ("Ugrandite")The members of each group freely intermingle among one another. However, between the two groups of Garnets, it is much rarer for them to intermingle. |
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Color Key: Red,Green,Yellow, Orange, Brown, Pink, Purple, Gray, Black |
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Refractive Index: 1.780 - 1.889 |
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Garnet is the traditional birthstone for the month of January, however, red need not be your color of choice if you are born in this month. Rich orange and golden hues, striking greens, petal soft colors of violet and lavender, all await your selection.
Precision Cut Green Golden Quartz
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Green Golden Quartz is a nother member of Quartz family gem stone.We found these Green-Gold Quartz Points and Rods from our supplier who got them from the Minas Gerais region in Brazil. These are new type of Quartz that is becoming very popular in jewelry. The green-gold coloring is beautiful and vibration is fast and smooth. |
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Color Key: Green to Greenish Yellow |
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Refractive Index: 1.554 - 1.553 |
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This quarts variety same as lemon quartz.But by comparision Green Golden Quartz are better meterial than Lemon Quartz there sufracce appearance come up nice rich greenish to greenish yellow colours.
Precision Cut Rose de France
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A Rose de France amethyst is a member of the amethyst family of gemstones. It is defined by its markedly light shade of the purple known to the amethyst family. The color is reminiscent of a lavender/lilac shade.
Amethyst is rated at 7 on the Moh's Scale of Hardness. Because of its relative hardness and having no particular warnings for care, Amethyst can be used for all jewelry purposes. Amethyst is found in a variety of hues of purple including deep purple, light lilac, lavender and mauve. The pale lilac colors, coined Rose De France, were once considered undesirable but have recently become a popular fashion favorite due to intensive and clever marketing.Regardless of this popularity, the deep, rich purple colors are still the most sought-after.
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Color Key: Tinted Purple to Light Rose |
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Refractive Index: 1.554 - 1.553 |
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Precision Cut Smokey Quartz
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Smoky Quartz is rated at 7 on the Moh's Scale of Hardness making it a durable gemstone suitable for practically all jewelry applications hence, with White gold and Silver will give more glmour and beauty . It's smoky brown to almost black color is somewhat rare in the mineral world, with only a few other minerals alike in color being cut for gemstone purposes.Be weary of unscrupulous dealers selling gemstones that they claim are Smoky Topaz. There is no such gemstone named Smoky Topaz and it is illegal to misrepresent Quartz as being Topaz. Heat-treated Smoky Quartz can also be found on the market being sold more expensively as a brownish-yellow/orange Citrine.
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Color Key: Smoky Brown to Black |
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Refractive Index: 1.554 - 1.553 |
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Brazil Madagascar Spain |
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Sri Lanka U.S.A |
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Today, the vast majority of natural Smoky Quartz comes from Brazil. Smoky Quartz originating from Mount Cairngorm of Scotland where it is a favorite ornamental stone is called Cairngorm.
Precision Cut Topaz
Topaz has long been related to desire and the name is believed to have been derived from the Sanskrit word 'tapas' meaning heat, fire and passion. It is also said to have been derived from the Greek word 'topazos' or 'topazion', meaning “to search.” Topazion was also the name of an island in the Red Sea which today is commonly known as Zebirget or St. John's Island in Egypt.
Topaz is a hard and durable gemstone, and will not dissolve in most chemical solvents. However, it does have perfect cleavage which can make it prone to chipping or forming flaws if banged hard. Topaz is also a pleochroic gemstone and can have varied color intensity when viewed at different angles. Due to its good cleavage and pleocroic nature, care must be exercised when faceting Topaz gemstones.
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Color Key: White, Colorless, Blue, Red, Green, Yellow, Orange, Brown, Pink, Purple, Gray |
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Refractive Index: 1.610 - 1.638 |
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Blue Topaz does occur in nature, but is rare and almost always lightly color. Most if not all blue Topaz used in jewelry has been irradiated and heat treated to artificially create the blue color. The original stones are colorless or lightly colored, and the radiation process gives them their deep sky-blue colors. In a few rare circumstances, some forms of blue Topaz tend to slightly fade in exposure to sunlight after extended periods of time.