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Jewellery identification

Gem and Jade Identification: Jade, Hetian Jade, Diamond, Ruby, Sapphire, Emerald, Pearl, Amber, Coral and other more than 100 kinds of jewelry and jades were identified, and their types and names were determined.


Precious metal detection: The variety and purity of various precious metal materials (such as gold, silver, platinum, palladium, etc.) are determined.


Jadeite grading: scientific and objective grading and comprehensive evaluation of the color, texture, transparency and production technology of jadeite jewelry.


Diamond Grading: Grading and evaluating the quality factors of colorless diamond, color diamond and inlaid diamond, such as weight, color, cleanliness and cutting.


Pearl grading: Pearls are graded and evaluated from the aspects of color, size, shape, gloss and finish.