Rusdi, S.Si., M.Sc., GIA AJP., PG., DS
Gemology Education & Courses :
- Applied Jewelry Professional (GIA)
- Pearl (GIA)
- Certified Professional Gemologist (IGS)
- Certified Diamond Specialist (IGS)
- Diamond Grading & Pricing (AIGS)
- Introduction to Diamonds by SSEF
- Introduction to Rubies by SSEF
- Introduction to Sapphires by SSEF
- Introduction to Emeralds by SSEF
- Introduction to Pearls by SSEF
