The JDMIS is committed to providing the best possible education and experience to its students! It gives me great pleasure to make the following declaration with regard to the school's core policies...

Student to Teacher Ratio and Teaching Staff

There are no more than 36 students to 1 teacher in any of the JDMIS’ theory classes. During practical training portions of JDMIS Courses this ratio is improved to only 12 students to 1 teacher in order to ensure each student receives ample attention and assistance as they learn skills critical to their success in the jewellery industry. The JDMIS has two full-time teachers on staff and six part-time professional jewellery instructors.

Classrooms and Facilities

The JDMIS has two specialized classrooms with a total seating capacity for up to 24 students. These facilities include all the tools and equipment needed to provide an exceptional learning experience, including computers, projection and visualization systems, jewellery-equipment such as induction casting equipment, a hydraulic press, burnout furnace and vacuum mixer, plating and polishing equipment, 3D wax printer, high-temperature kiln, magnetic finishing tools, flex-shaft rotary finishers, rolling mills and much, much more...

Instructors and Governing Boards

The JDMIS maintains an academic board whose purpose is to review the school's procedures and policies with regard to the quality and direction of its training. Board members include Myself, Mr. Bhavik Bhatt and Mr. Alex Zupancich. The schools examinations board, whose responsibility includes administration of policies and procedures related to assessments and examinations comprise myself, Alex Zupancich and Bhavik Bhatt.

Students at the JDMIS are ensured rewarding training experiences by the quality of their instructors. All JDMIS instructors and visiting instructors are experienced artists, educators and/or industry members and are selected because of their knowledge and passion for the jewellery field. While many may not have stratospheric qualifications themselves, such documents matter little in the a vocation such as jewellery - where artistic ability, industry experience and strong ability and desire to share knowledge are paramount.
JDMIS regular, Singapore-based instructors include:

  • Tanja Sadow

    Tanja Sadow

    Tanja is an award winning jewellery designer & gemmologist with more than 4 decades of experience educating the jewellery industry across 4 continents. Dean and founder of JDMIS, Tanja works with aspiring artisans as well as top jewellery brand team members to help them achieve brilliance in their careers.

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  • Alexander Zupancich

    Alexander Zupancich

    Alex has been training designers and business owners from the region in 3D jewellery design and manufacturing since 2008: building the CAD/CAM skills of over 400 jewellery professionals. He graduated from Duke University with a Bachelors'degree in Computer Science, Marketing and Management and from INSEAD with a Masters' Degree in Business Administration.

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  • Rob Schilling

    Rob Schilling

    Rob Schilling is an expert global trainer, professional coach, jewellery designer, and a JDMIS graduate. Rob has passionate interest and decades of experience working in both jewellery industry and corporate training for C-suite professionals.

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  • Wahab Hussain

    Wahab Hussain

    A former corporate trainer and speaker, Wahab is also a passionate jewellery artist specializing in wire sculpting and fabrication using powdered metals. Wahab is an accredited jewellery professional with GIA and brings over 15 years of experience in these specialities to the JDMIS Precious Metal Arts and Fashion Jewellery Arts programmes. Many of his most unique design styles are self taught and he shares these with his Thread and Wire and Metal Clay students on a part-time basis.

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  • Sujata Rai Chowdhury

    Sujata Rai Chowdhury

    Sujata is an experienced teacher and fashion jewellery artist specializing in thread and wire jewellery fabrication techniques. Moving to Singapore, she used the opportunity to enrolled into JDMIS and after graduation, she soon became a recognized jewellery artist with her own brand name, Mila

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  • Tameem Mohamed

    Tameem Mohamed

    A marine engineer of 24 years, Tameem rekindled his passion for product design in 2004 and graduated from JDMIS' Metal Clay Arts and Digital Jewellery Design programmes. He went on to start his own jewellery and production label, creating hundreds of designs for his customers before eventually joining JDMIS as an instructor to impart his practical knowledge to the next generation of jewellery designers.

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  • Michelle Wong

    Michelle Wong

    From a microbiologist, Michelle ventured into jewellery crafting as a hobby but eventually wanted to turn it into a full-time career. Michelle is passionate and highly experienced in Precious Metal Arts and Fashion Jewellery Making.

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  • Sharon Tan

    Sharon Tan

    Sharon Tan was previously a seasoned marketer and accomplished figure skating coach. Her unique blend of skills, creative passion, and teaching acumen enables her to effectively impart complex jewellery techniques to her students and inspire them to greater heights and success even beyond the classroom.

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  • Cherry Tan

    Cherry Tan

    Cherry's background as a psychology graduate & therapy practitioner enriches her approach, blending emotional intelligence with artistic flair. Her commitment to craft, coupled with her extensive investment in jewellery education, empowers her to impart intricate techniques with clarity and inspire her students to pursue their own paths.

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    Organizational Structure


    Organizational Structure - Workflow Chart


    The JDMIS is a small and specialized school; run by experienced and capable entrepreneurs who understand the key to the school's success is the operation of an efficient, student focussed and quality driven enterprise. While formally, the school maintains a series of distinct roles within the organization, in practice the school managers and team members fulfil many of these roles simultaneously, and more efficiently than with large numbers of departments and staff. Students are likely to interact with JDMIS registration and student services staff on a regular basis, but otherwise operational and management issues will be raised to either myself or the Managing Director, Alex Zupancich. The school also maintains inventory, maintenance, accounts, design and marketing related staff on full or part-time bases. The school's board of directors (ie: overall managers of the school) may be found here.

    Transparent Pricing and Refund Policies

    The JDMIS maintains policies and procedures aimed at ensuring its staff and agents represent the courses we offer clearly and accurately. All marketing documentation clearly states pricing information and JDMIS course prices are inclusive of required tools and materials, mean students will never find themselves having to pay more to complete the supervised project work that is part of the JDMIS curriculum and take with them the tools they need to continue practicing the skills they have learned (please note however that students are free to supplement these materials for self-study projects completed outside of Diploma contact training hours). The JDMIS is a GST registered company and all fees paid to the JDMIS are subject to the prevailing Singapore Goods and Service Tax. Qualifying tourists may request a GST refund for the tools and materials provided as part of the course.

    The JDMIS is aware that circumstances may arise that make it impossible for a student to complete their course of study. When these circumstances affect the JDMIS ability to offer a scheduled course, the school will always offer a refund to its affected students. Where students withdraw from our programmes for personal reasons, the JDMIS is willing to offer full or partial refunds according to clearly stated notice requirements.

    Established Feedback Channels and Grievance Redress Policies

    The JDMIS recognizes that there are always opportunities for improvement and maintains an open feedback channel by means of its student services staff. In instances of misunderstandings or disputes between students, with faculty or against the school itself the JDMIS follows a clear grievance resolution process that includes external mediation and arbitration as a last resort.

    Standard Student Contract for Diploma Courses

    All prospective local and international students participating in JDMIS full-time diploma programs are required to enter into the Standard Student Contract before course admission. Sample of this Standard Student Contract can be viewed at Council for Private Education's website or you may request a copy of this contract from the School. A copy of the relevant contract is included in the admissions documentation sent to all students accepted into JDMIS Diploma programmes.

    The JDMIS is committed to providing superior education as well as a safe and fair educational environment for its students and we are proud to participate in the education trust mark program- In the past the school was accredited under CASETrust for Education and is currently pursuing the Singapore Edutrust certification.

    Available Diploma Courses

    JDMIS Offers the following Diploma courses that are open to all participants:

    • Fine Jewellery Design Diploma

      Fine Jewellery Design Diploma
      Become a Fine Jewellery Designer - the true artist and creative professional. Learn to conceptualize fashionable and practical jewellery designs, communicate your ideas to a jeweler, plan and budget for your designs, and make your designs more appealing to the customers.

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    • Precious Metal Arts Diploma

      Precious Metal Arts Diploma
      Having gone through a broad array of creative and challenging metal work projects, a Certified Precious Metal Artist stands apart from their peers by able to fabricate with a variety of precious materials, produce unique designs and combine multi-disciplinary techniques to produce unique masterpieces or reproducible lines.

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    • Fashion Jewellery Design Diploma

      Fashion Jewellery Design Diploma
      The fastest way to create high quality, fashionable jewellery is by knowing how to select and assemble materials professionally. This programme is ideal for entrepreneur who wants to quickly develop their own style and brand, produce unique yet saleable designs using advanced techniques.

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      Tanja M. Sadow

      Dean, Jewellery Design & Management International School

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