Jewellery VideoEmerald — the garden gem
Emerald's internal garden is character, not defect — within limits.
Emerald is green beryl coloured by chromium and vanadium — the most
fragile member of the big-three coloured gems, and arguably the most loved.
The jardin — emeralds virtually always carry internal gardens
(inclusions). Eye-clean emeralds are rare and priced accordingly; visible
garden is normal, cracks that reach the surface are not.
Oiling — cedarwood oil filling of surface fissures is traditional,
accepted and discloseable; synthetic resins are a step further. Ask, always.
Care — no ultrasonic cleaners, no steam, gentle soap and water only.
Hardness ~7.5-8 but brittle from the gardens: protective settings for
rings, pendant/earring placements preferred.
Where it comes from — Colombia, Zambia and Brazil drive the modern
market, each with a recognisable face. Origin stories are part of the
webinar library's sessions.
Go deeper — free
Watch the free replays at the gem webinar library — the gem e-book is the written companion. When curiosity becomes commitment, the gemmology foundation course is the ladder's first rung (online entry: GT100e); dates on the calendar. Play Name That Gem to train the eye between sessions.
What students say
“I hope to start and improve my own online shop.”
— Josephyn Y. (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.
Full recorded sessions — the best free starting point.JDMIS on YouTubeFREE
Course previews, blended-learning explainers and school life.Free jewellery webinar replaysFREE
Recorded sessions on design and the jewellery industry.Download the gem e-bookFREE
The school's free guide to gems — pairs with the replays.
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