Gemological Science International’s (GSI) Colored Stone Professional (CSP) Diploma programme recently organised an educational field visit to Sri Lanka’s renowned Rakwana Gem Deposit, offering students a rare, hands-on learning experience in one of the world’s most famous gemstone regions.
The visit aimed to give students a holistic understanding of the gemstone pipeline—from mining and processing to trade. “Experiences such as these are essential for developing a well-rounded understanding of the gemstone industry,” said Ramit Kapur, Managing Director, GSI India.
At the Rakwana Gem Deposit in the Ratnapura District, students observed small-scale mechanised mining operations conducted on agricultural lands, where sapphires, chrysoberyl, spinel, and tourmaline are recovered. They also witnessed manual gravel sorting techniques used by local miners to identify gem-bearing pebbles.
“Classroom learning provides the foundation, but witnessing the journey of gemstones at their source offers an unparalleled perspective,” noted Meenu Vyas, Chief Global Gemologist & GSI Education Centre.
The group also visited the Karawita Mining Area, viewed traditional Geuda sapphire heat treatment in Ratnapura, and explored gem markets in Ratnapura and Beruwala. At the Beruwala Gem Cutting Workshop, they observed cutting and polishing techniques that bring out each gem’s brilliance and value.
The CSP Diploma, offered at GSI’s Jaipur centre, blends rigorous classroom instruction with practical training, mine visits, and workshops. By combining scientific study with real-world exposure, the programme prepares future gemmologists with both technical expertise and ethical insight into the global gem and jewellery industry.