The gem webinar replays are the best free gemmology education
on this site — full recorded sessions from the school, no sign-up. Here is
how to work the library.

Session families — identification and treatments; famous gem families
(ruby, sapphire, emerald, jade); trade practice (buying, disclosure,
valuation basics); pearl sessions in the
pearl library and jewellery-industry sessions in the
jewellery library.

The three-pass method

1. Pass one — watch for enjoyment; nothing else.
2. Pass two — with the gem e-book open, note terms.
3. Pass three — pause and quiz yourself via
   Name That Gem — the game's gem photos come from the school's
   teaching library.

After the replays — the ladder: gemmology foundation (online
entry GT100e) then identification methods. Real
stones, real instruments, real certificates.

The Explore the Gem Globe interactive map pairs nicely with the
origin sessions.

What students say

“I intend to contribute articles to jewellery magazines and hope that someday I can be an authority in this field. That's a dream.”

— Yen Ting C. (Singapore) · published student feedback

“I will use the skills learnt to make jewellery and other items, such as phone chains, christmas tree decorations & hopefully sell them.”

— Nadia W. (England) · published student feedback

Free ways to explore

No sign-up, no payment — start with any of these.

WWatch a free gem webinarFREE
Full recorded sessions — the best free starting point.JJDMIS on YouTubeFREE
Course previews, blended-learning explainers and school life.FFree jewellery webinar replaysFREE
Recorded sessions on design and the jewellery industry.DDownload the gem e-bookFREE
The school's free guide to gems — pairs with the replays.

Keep exploring

Peridot — the green that comes from space and volcanoesPeridot explained — the olive gem from mantle and meteorites, its even colour, hardness anOnline jewellery courses — what you can genuinely learn remotelyWhich jewellery skills work as online courses — gemmology theory, design knowledge, busineThe 4Cs of diamonds — cut, colour, clarity and carat explainedThe 4Cs explained plainly — how cut, colour, clarity and carat actually drive diamond beauTopaz — the imperial and the blueTopaz explained — imperial and blue varieties, hardness vs cleavage, treatment norms and c

See the online and blended options

Gemmology can be started fully online, and every classroom course at JDMIS has a video-supported path.

Visit jdmis.edu.sg