wholesale jewelry programs How to determine the technical content of the standard of "Jewelry and Jade" standard

custom jewelry wholesale new york The technical content of the "Jewelery Jade Law" standard is mainly determined based on Wang's "Systems Mineral", the Gem Reference Guide "Gem Reference Guide" and the British Gem Society FGA textbook.
The determination of the scope of the term mainly selected the relevant terms commonly used in jewelry and jade identification.
Jewelry and jade are a special product. The choice of appraisal method is based on the basic principles of not destroying the sample. Except for hardness testing, other basics are basically non -destructive appraisal methods. Hardness is one of the basic characteristics of jewelry and jade. It has mild damage during the appraisal. Although it cannot be used as an important identification item, it can still be used as an auxiliary method for unprocessed rough.
The jewelry and jade varieties listed in the appraisal standard include common and common varieties and some rare jewelry and jade varieties.