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Instrument :: GGT - Global Gem Testing Laboratory
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Sign up for our newsletters. Ndash; determine refractive index, birefringence, optic character and optic sign of gemstones. Ndash; determine optic character, optic figure and detect pleochroism of gemstones. Ndash; detect pleochroism and determine SR/DR gemstones. Ndash; identify the coloring agent in certain gems. Ndash; detect fluorescence of gemstones. Ndash; examine absorption and emission patterns in visible light of gemstones. Electronic scale with hydrostatic attachments.
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About Us :: GGT - Global Gem Testing Laboratory
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Sign up for our newsletters. Global Gem Testing Laboratory (GGT) is an independent gemological laboratory. We specialize in identifying gemstones, for instance, analyzing the enhancement of gemstones, identifying rare gemstones and grading diamonds. We are highly experienced gemologists in gem laboratory with G.G. GIA qualification. Additionally, our laboratory is also equipped with standard and advanced instruments. Reasons to use GGT. Reliable and accurate gemstone report with precise gemstone photo.
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GGT Membership :: GGT - Global Gem Testing Laboratory
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Sign up for our newsletters. Membership Fee 1,200 baht per year. Get 10% discount for gem testing service.
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Inclusion Gallery :: GGT - Global Gem Testing Laboratory
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Sign up for our newsletters. All - - -. Lead Glass Filled Ruby.
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GGT Price List :: GGT - Global Gem Testing Laboratory
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Sign up for our newsletters. Up to 49.99 cts. 5000 cts. and up. Jewelry report price depends on amount of gemstone in setting. Diamond Grading Mini Report. Color and Clarity grading. When advanced instrument is used. Surface glass filling plotting. Report with origin opinion (whenever possible). Report Duplicate or Renew Report. All prices stated in Thai Baht exclusive of VAT 7%. The price list is effective starting from 1st August 2009.
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Diamond Report :: GGT - Global Gem Testing Laboratory
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Sign up for our newsletters. All - - -. Diamond clarity and color grading in portable size report. For more information please contact us. Name - last name.
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Synthetic Ruby (flux) :: GGT - Global Gem Testing Laboratory
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Sign up for our newsletters. All - - -. Coarse flux inclusions in flux synthetic ruby. Lead Glass Filled Ruby.
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TRANSPARENT RHODONITE WITH UNUSUAL INCLUSIONS :: GGT - Global Gem Testing Laboratory
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Sign up for our newsletters. All - - -. TRANSPARENT RHODONITE WITH UNUSUAL INCLUSIONS. Transparent Rhodonite with unusual inclusions. Taywiga Phataphol B.Sc., G.G. Most Rhodonite seen in the trade are translucent to opaque pink, often with black veins or spots. Many are fashioned into beads and cabochons. However, transparent Rhodonite is also found in some localities. Figure 1: 4.48 ct. transparent orangy red cabochon Rhodonite. Figure 2: Curved tubes inclusions and crystals. Pardieu V., Winza Ruby?
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Rhodolite Garnet :: GGT - Global Gem Testing Laboratory
http://www.ggtlaboratory.com/content-RhodoliteGarnet-4-255-1993-2.html
Sign up for our newsletters. All - - -. Rhodolite Garnet and its inclusions. Rutile needles - typical inclusions in Rhodolite garnet. Lead Glass Filled Ruby.
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Lab note :: GGT - Global Gem Testing Laboratory
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Sign up for our newsletters. All - - -. TRANSPARENT RHODONITE WITH UNUSUAL INCLUSIONS. Most Rhodonite seen in the trade are translucent to opaque pink, often with black veins or spots. Many are fashioned into beads and cabochons. However, transparent Rhodonite is also found in some localities. INTERESTING INCLUSIONS IN QUARTZ CRYSTAL. JADEITE CLASSIFICATION AND IDENTIFICATION.