ARUSHA-Mratibu Kituo cha Jemolojia Tanzania anawatangazia wanafunzi wanaotaka kujiunga na mafunzo ngazi ya Stashahada (Diploma).
Ni katika fani ya Ordinary Diploma in Gem and Jewellery Technology pamoja na fani mbalimbali za uongezaji thamani ngazi ya cheti katika fani za:-
Jewellery manufacturing
Gemmology
Lapidary (Foundation)
Gemstone Identification
Jewellery Design
Synthetic & treated Gem Identification
Colored Gemstone Grading and pricing
Diamond Grading and Pricing
Ornamental Stone Carving