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, 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, 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.