Gem Cutter / Jeweller

Cut, polish, and set precious and semi-precious gemstones, and fabricate jewellery — a uniquely Sri Lankan trade at the heart of the world's finest sapphire, ruby, and alexandrite industry.

CompetitiveMedium demand Global career Entrepreneurial

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Gem cutters and jewellers work at the intersection of art, science, and craft. Gem cutters (lapidaries) cleave, grind, facet, and polish rough gemstones to maximise their brilliance, colour, and value. Jewellers design and fabricate rings, necklaces, bracelets, earrings, and other jewellery items from gold, silver, and platinum, setting gemstones and applying surface treatments. Sri Lanka is one of the world's top three producers of coloured gemstones — the island produces blue, yellow, pink, and padparadscha sapphires, rubies, alexandrite, cat's eye chrysoberyl, garnets, spessartite, and over 40 other gem varieties. The Ratnapura district (the City of Gems) is the centre of Sri Lanka's gem mining and processing industry, but gem cutting workshops, gem dealers, and jewellery manufacturers are present across the country. The National Gem and Jewellery Authority (NGJA) of Sri Lanka regulates the industry and provides training and certification. NGJA offers National Certificate programmes in Gemmology, Gem Cutting, and Jewellery Fabrication. The Ratnapura Gem and Jewellery Training Centre (RGJTA) provides vocational training. Colombo's Galle Face gem dealers, Liberty Plaza gem market, and the Majestic City gem trade all employ qualified gem cutters and jewellers. International demand for Sri Lankan gems is enormous: buyers from the USA, UK, Switzerland, Japan, Hong Kong, and the UAE source sapphires and other gems directly from Sri Lanka. A highly skilled gem cutter who understands colour maximisation, proportioning, and the global gem market can earn a very substantial income. Self-employment as an independent gem dealer or jewellery manufacturer is a natural career destination. The most skilled lapidaries and jewellers command premium prices internationally.

What a Gem Cutter / Jeweller does daily

Assess rough gemstones: identifying gem species, evaluating colour, clarity, and crystal orientation to plan the cut
Cleave and saw rough stones: splitting or sawing rough to remove inclusions and establish the cutting orientation
Grind and shape: using a grinding wheel to establish the girdle shape (round, oval, cushion, pear, or marquise)
Facet and polish: cutting and polishing the crown and pavilion facets to achieve maximum light return and brilliance
Calibrate to standard sizes: cutting to internationally standard sizes (e.g. 6x4mm oval, 7mm round) for jewellery setting
Fabricate jewellery: sawing, filing, soldering, forming, and finishing gold and silver jewellery
Set gemstones: prong setting, bezel setting, channel setting, and pave setting of faceted and cabochon stones

Why this matters: Sri Lanka's gem industry contributes significantly to the national economy and is one of the country's oldest and most distinctive industries. The island's geological uniqueness — ancient metamorphic rock formations that produce exceptional sapphires and other gems — is irreplaceable. The gem and jewellery industry employs hundreds of thousands of Sri Lankans in mining, cutting, trading, and manufacturing. Sri Lankan sapphires are among the most desired in the world and appear in some of the most famous jewellery ever made. Without skilled gem cutters and jewellers, Sri Lanka cannot extract the full value from its extraordinary natural gem resources.

Step-by-Step Career Roadmap

What to do

Research what a sapphire is: corundum mineral species, blue colour from iron and titanium trace elements
Research why Sri Lanka produces exceptional sapphires: the Precambrian gem-bearing gravels (illam) of the highland zone
Research the 4Cs of gem quality: colour, clarity, cut, and carat weight
Visit the National Museum in Colombo to see the gem exhibits
Research the National Gem and Jewellery Authority (NGJA): what training they offer

Key subjects

ScienceArtMathematics

Skills to build

Mineral properties: hardness (Mohs scale), cleavage, fracture, lustre, and refractive index as identification toolsCrystal systems: cubic, tetragonal, hexagonal, orthorhombic, monoclinic, and triclinic — and which gem species belong to eachColour theory: hue, tone, and saturation in coloured gems — why a slightly different blue fetches ten times the priceBasic optics: how light bends (refraction) and reflects inside a faceted gemstone

Suggested activities

Research and draw the crystal structure of corundum (sapphire/ruby)
Research the 4Cs of gemstone quality and write a short explanation of each
Visit a gem and jewellery shop and observe the range of gems on display
Research the Ratnapura gem industry: what happens from mine to market?

Important notes

Gem fraud is rife in the informal market: never buy gems without training — many "sapphires" sold to tourists are synthetic or glass
Science is important: gemmology is a science — optics, mineralogy, and chemistry are all relevant

💡 Backup / alternative options

Jewellery design if the artistic side of jewellery is more appealing than gemstone cuttingGeology degree if the earth science of gem formation is the primary interest

⚠️ Important: Career paths and admission requirements change. Always verify the latest university entrance criteria, professional body requirements, and A/L subject combinations with official sources before making final decisions.