Jewellery School GuideEvery school is a person before it is a building. JDMIS is Tanja Sadow's.
- Founder and dean — she built the school in 2007 around a claim she has spent decades proving: jewellery is a teachable profession, not a gift.
- Trade roots — gemmology, design and manufacturing experience across the region's industry, not just the classroom.
- The philosophy — small classes, hands-on from session one, standards assessed against what retail buyers actually apply; stated in her own words on the dean's page.
- Still present — she teaches, and the published reviews page names her repeatedly: an expert who encourages.
A school's accountability starts at the top. Meet it in person — book a visit — and read the faculty list to see the team she built.
What students say
“There is a very wide range of jewellery design programmes. Tanja's an expert and she encourages the class and is also open for catch-ups later.”
— Cecilia O. (Singapore) · published student feedback
“It is fun, interesting & educational!”
— Shahirah A. (Singapore) · published student feedback
Free ways to explore
No sign-up, no payment — start with any of these.
Book a studio visitFREE
See the studios, the gem vault and meet the team in person.Free gem webinar replaysFREE
Full recorded sessions on gems and the jewellery trade.The complete course guideFREE
Every course, family and diploma in one PDF.JDMIS on YouTubeFREE
Course previews, blended-learning explainers and school life.
See the studios, the gem vault and meet the team in person.Free gem webinar replaysFREE
Full recorded sessions on gems and the jewellery trade.The complete course guideFREE
Every course, family and diploma in one PDF.JDMIS on YouTubeFREE
Course previews, blended-learning explainers and school life.
Visit Singapore's specialised jewellery school
JDMIS has taught jewellery design, gemmology and metal arts in Singapore since 2007 — from hobbyist workshops to full diplomas.
Visit jdmis.edu.sg