Jewelry appraiser: it belongs to quality inspection and needs the authorization of specialized institutions. Signing some certificates has legal effect.
Jewelry designers: there is no standard certification body at present; It can be said that it is a skill.
Arts and Crafts Artist: It can also be said to be a major.
Jewelry designers and arts and crafts artists have won prizes in competitions organized by some organizations, and they can generally be regarded as masters. Such as: Tiangong Award, National Art Exhibition, etc.
Retail professional manager: this is a position, not a clear specialty, the reputation of a salesman or superior;