Skip to content
Main JDMIS Logo
  • Home
  • Online Courses
  • About
    • Contact
  • Blog
  • Cart
  • My Courses
0

Lesson Category: gemmology

  1. Home
  2. gemmology

The 4th C: Cut

Open to access this content

The 3rd C: Carat Weight

Open to access this content

The 2nd C: Clarity

Open to access this content

The 1st C: Colour & Digital Handout

Open to access this content

Other observations and characteristics

Open to access this content

Synthetic Diamonds, Diamond Simulants and Imitations

Open to access this content

Attributes of Diamond

Open to access this content

Introduction & Digital Handout

Open to access this content

  • Previous
  • 1
  • 2

About JDMIS

Tanja Sadow, Dean of JDMIS, instructing her jewellery student in the Metalsmithing room.

The Jewellery Design and Management International School (JDMIS) is the only educational institution in Singapore to focus exclusively on the jewellery arts, offering internationally recognized professional qualifications in jewellery design, fabrication and business , training over 20,000 jewellery professionals with over 5,500 students from 56 countries.

Picture of JDMIS jewellery graduates

The JDMIS Team has been working hard to roll out the online versions of our various signature jewellery design and fabrication programmes. Click here to check them out and not miss the limited-time launch offers.

Contact us

Email: online@jdmis.edu.sg

  • Home
  • Online Courses
  • About
  • Blog
  • Cart
  • My Courses
© 2026 - Online Jewellery Learning Platform. All rights reserved.