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Contact us
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Whatever the query, We'll take care of it:
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Monday-Friday 9:00 am - 5:30 pm
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Saturday 9:00 am - 1:00pm
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Laboratory
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The Hong Kong Jewellery & Jade Manufacturers Association established the Hong Kong Jade & Stone Laboratory Ltd. (HKJSL) in 1993.
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Equipped with the advanced instrumentation, our experienced gemmologists can test jade accurately and issue authenticated certificates to the public.
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More...
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How to choose "A Jade"
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In the jade industry, terms of jadeite classifications like "A" Jade, "B" Jade, "C Jade" and "B+C" Jade are used, but they are by no means jadeite grading.
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"A", "B", "C" goods are trade terms commonly used for Fei Cui (Jadeite Jade) in the jade industry, not representative of its grading. Myanmar (Burma) is the major source of Fei Cui (Jadeite Jade).
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Instruments
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The Hong Kong Jade & Stone Laboratory carries out jadeite testing and certification services in an impartial and objective manner, enabling both consumers and jewellery traders to have a clear understanding as to whether their jadeite is natural or chemically treated.
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The laboratories are well resourced with the latest equipment, to ensure maximum reliability in testing:
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•Diamond Balance
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•Microscope
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•Heavy Liquid Set
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•Dichroscope
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•Microvision
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