BAJUS Institute — Skills Academy
Developing elite craftsmanship, advanced gemmology, CAD design, and gold assaying skills since 1972.
BAJUS Curriculum
Training & Course Outline
Explore specialized courses designed to develop and accredit skills in precious metals processing and design.
Gold Assaying & Hallmarking Standards
About This Course
Learn gold purity validation, fire assaying, chemical testing, and X-ray Fluorescence (XRF) spectrometry. Students gain hands-on training to operate hallmark scanning centers. Master quality control and government compliance standards for precious metal testing.
Course Syllabus & Modules
Introduction to Precious Metals
Fundamentals of gold karats, physical properties, and standard purity metrics.
Fire Assaying & Chemical Validation
Cupellation techniques, parting acids, and precision micro-balances.
Spectrometry & Hallmarking Certification
Operating modern X-ray Fluorescence scanners and laser hallmark stamping.
Meet Your Instructor
Ranjit Ghosh
Ranjit Ghosh has over 15 years of active laboratory experience in fire assaying and hallmark auditing. He oversees the central BAJUS standards committee.
Registered member outlets of BAJUS receive automated subsidies and discounts for staff tuition enrollments at the skills academy.
Course Registration
Please fill in your details to secure a seat in Gold Assaying & Hallmarking Standards
Faculty & Cohorts
Teacher & Trainee Directory
Meet the distinguished trainers guiding our courses and the graduates building their careers in the jewellery trade.
Faculty Members (Teachers)
Ranjit Ghosh
Instructor for: Gold Assaying & Hallmarking Standards
Faculty Member since 2012
Swapan Karmakar
Instructor for: Filigree & Handmade Crafting
Faculty Member since 2015
Kazi Sharmin
Instructor for: CAD Modelling & 3D Printing
Faculty Member since 2021Professor M. A. Karim
Instructor for: Gemmology & Diamond Grading
Guest Faculty since 2023Institute Leadership
Governance Body
The governing council overseeing curriculum, accreditation, and the strategic direction of BAJUS Institute.
Enamul Haque Khan
Ranjit Ghosh
Badal Chandra Roy
Amit Ghose
Bablu Dutta
Shown Ahmed Chowdhury
Ganesh Debnath
Mizanur Rahman
Paban Kumar Agarwal
Tanveer Rahman
Testimonials
Alumni Feedback Videos
Hear directly from graduates who transitioned from training cohorts to professional jewellers.
The Assaying course helped me secure my certification
Mohammad Rasheduzzaman · Graduate 2025
Learning traditional Bengali filigree crafting at BAJUS
Tania Sultana · Craft Apprentice






