Gemmology Courses in Singapore: How to Choose Your Training

Singapore has more places to study gemmology than most cities of its size. The trade here is real: a jewellery sector that the national skills agencies actively fund, a gemmological laboratory community, and schools training jewellers for retail, manufacturing and appraisal work. Channel NewsAsia reported in July 2025 that the industry expects growth even as the pool of trained craftsmen shrinks, which makes trained gemmology staff harder to find and more valuable.

If you are comparing gemmology courses in Singapore, this guide sets out what the discipline actually covers, what different providers offer, and the questions worth asking before you pay for a course.

What a gemmology course should teach

Gemmology is the study of gem materials: how they form, how to identify them, and how their properties drive value. A complete course covers three layers.

The first is theory: gem formation, crystal systems, chemical formulas, and the physical and optical properties that separate one material from another. The second is practical identification. You should handle the standard instruments yourself: the polariscope and dichroscope for optical behaviour, the refractometer for refractive index, the spectroscope for absorption lines, and the microscope for inclusions. The third is value: why two visually similar stones trade at different prices, what treatments and synthetics do to value, and how the trade describes these differences to buyers.

A course that never puts instruments in your hands is teaching gem appreciation, not gemmology.

Where you can train in Singapore

JDMIS, the Jewellery Design and Management International School, teaches gemmology across two certificate courses. GT100, Gem and Jewellery Trade Secrets, covers where coloured gems come from, how gemmologists classify them, and the factors that move their value. GT200, Gem Identification Methods, is the practical course: students work through identification procedures with the polariscope, dichroscope, spectrometer and microscope, learning to determine what a stone is rather than guess at it. The school also publishes a free gem reference library with 83 materials, their measured properties and cited sources.

The Gem Museum, through the Far East Gem Research Institute, runs the Gem-A Foundation certificate in gemmology, a pathway towards the FGA qualification awarded by the Gemmological Association of Great Britain. The Gemological Identification Laboratory at Golden Landmark (Victoria Street) runs short courses alongside its testing and appraisal services. NGI, the National Gemological Institute, teaches diamond grading and gemmology from its own campus.

Providers change their schedules and fees each intake, so check current dates directly with each school.

Certificate, diploma or professional qualification?

Most Singapore courses award their own certificates, which demonstrate training to employers but are not externally examined. Externally examined qualifications, such as Gem-A's Foundation and Diploma levels, involve international exams and take longer. Neither route is universally better: a jeweller hiring for a retail bench often values hands-on instrument time over exam certificates, while appraisal and laboratory work tends to reward formal qualifications. Ask each provider who examines the certificate and what it is recognised for.

Four questions to ask before enrolling

How many hours are spent with instruments, compared with lectures? Can you handle untreated, treated and synthetic stones during the course? Is the certificate examined internally or by an external body? And does the course address the local trade: Singapore's jewellery retail sector, its suppliers, and the buying standards used here?

Keep reading

• Gem identification: 8 tools gemmologists use, with pictures
• How to identify a gemstone: six measurable tests
• Gemmology fundamentals any buyer should know: the 4Cs and beyond