Course Theme

Comprehensive: Covering the three precious gems of ruby, sapphire and emerald, as well as the eight popular categories of colored gems in the market.

Professional: Professional teaching staff, connected to the market, relying on the GUILD laboratory to update the latest market information and bring it into the course.

Preferential: 30% off for learning three core courses.

Remote class, with free choice of location.

Class Mode

Online

Online Course Diploma