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Identification Items

    Following scientific, accurate and just principle, PKUGAC will always provide customers with good service of gems & jewelry testing. The main testing scope and items are as follows:

1. Diamond: Identification and grading of Diamond

2. Gems: Identification of different kinds of gemstones such as Ruby, Sapphire, Chrysoberyl, Cats Eye, Alexandrite, Emerald, Aquamarine, Tourmaline, Spinel, Zircon, Topaz, Olivine, Garnet, Rock Cristal, Feldspar, Zoisite, Apatite, Pyroxene and so on.

3. Jades: Jadeite, Nephrite, Opal, Chalcedony, Quartzite, Serpentine, Lapis, Malachite, Marble, Fluorite, Chicken-blood stone, Qingtian Stone, Shoushan Stone,

4. Organic gems: including identification of pearl, amber, coral, ivory, shell, tortoise shell (turtleback), jet, rhinoceros horn etc. 

5. Inkstones: identification of different kinds of inkstones

6. Ornamental stones: including identification of different kinds of ornamental stones and their pattern

7. Precious medals: including the composition and purity testing of precious medals such as gold, platinum, silver etc.

8. Artificial Products: including various synthetic gems, artificial gems, plastic, glass etc.