Following scientific, accurate and fare principle, PKUGAC provides customers
with good testing service of gems & jewelry, and undertake corresponding civil legal liabilities.
　 The main testing scope and items are as follows:
1. Diamond: Identification and grading of Diamond
2. Gemstones: Identification of different kinds of gemstones such as Ruby, Sapphire, Chrysoberyl, Cat’s 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(agate), Silicified asbestos, Quartzite, Serpentine, Dushan jade, turquoise, Lapis lazuli, Charoite, 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. Ink stone: identification of different kinds of ink stone
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.