X-Ray Fluorescence (XRF) Spectroscopy
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Raman Spectroscopy
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FTIR (Fourier Transform Infrared) Spectroscopy
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UV-Vis Spectroscopy
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Isodynamic Magnetic Separation
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Planetary Ball Milling
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Particle Size Analysis (Laser Diffraction)
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Sieve Analysis
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Gem-related Certificate Courses
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Jewellery related Certificate Courses
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Diploma Courses
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International Courses
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Technical Workshop
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On The Job Training (Ojt)
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Advanced Gem Identification Workshop Concludes Successfully
GJRTI hosted a successful hands-on workshop on advanced gem identification techniques using Raman spectroscopy and FTIR. Over 50 participants attended from across the island.
Graduation Ceremony – Diploma in Jewellery Manufacturing
The latest batch of students in the NVQ Level 5 Jewellery Manufacturing program celebrated their graduation, with certificates awarded by GJRTI and TVEC officials.
GJRTI Launches Mobile Gem Testing Unit in Ratnapura
To improve accessibility to gem testing services, GJRTI launched its mobile gem lab in Ratnapura. The mobile unit offers real-time analysis using portable gemological equipment.
Seminar on Sustainable Gem Mining Practices
To improve accessibility to gem testing services, GJRTI launched its mobile gem lab in Ratnapura. The mobile unit offers real-time analysis using portable gemological equipment.
New CAD/CAM Lab Inaugurated at GJRTI Head Office
GJRTI opened a state-of-the-art CAD/CAM laboratory for jewellery design and manufacturing. This facility supports students in learning 3D modeling and precision casting
Increasing Gem extraction in Sri Lanka
Increasing Gem extraction in Sri Lanka Sri Lanka’s gemstone export industry has experienced notable growth in recent years. The annual income generated from gemstone exports between 2019 and 2024 was US$321 million and US$312 million (up to July 2024), respectively. Projections to reach $500 million by year-end show a slight increase in export revenue. Looking…
GIS-Based 3D modeling for Characterization of a Secondary Gem-bearing profile: A Case Study in Kelani River Basin
GIS-Based 3D modeling for Characterization of a Secondary Gem-bearing profile: A Case Study in Kelani River Basin Accurately estimating deposit thickness and characterizing sedimentary layers in secondary gem deposits in Sri Lanka, is crucial for optimizing resource utilization and minimizing environmental impact. Traditional methods, including manual surveys and surface mapping, often lack the spatial resolution…
Value Addition of Low-Quality Gem Materials Through Gamma Irradiation and Commercialization
Value Addition of Low-Quality Gem Materials Through Gamma Irradiation and Commercialization Sri Lankan gem mines produce a variety of gemstones, but many of them are of low quality and have limited market value. While traditional treatment methods are commonly used to improve gem quality, they are not always effective for certain low-quality materials. This research…
Characterization of Inclusions in Geuda and Introduction of New Heat Treatment Methods to the Industry
Characterization of Inclusions in Geuda and Introduction of New Heat Treatment Methods to the Industry In the geuda industry, selecting the right geuda that will produce high-quality sapphires is a challenging task. Many gem traders struggle due to a lack of knowledge about identifying geuda with the best potential for heat treatment. One major issue…
Preparation of a catalogue on Sri Lankan ethnic Jewellery designs to commercialize them for local and foreign returns
Preparation of a catalogue on Sri Lankan ethnic Jewellery designs to commercialize them for local and foreign returns Sri Lanka claims an extremely sought-after assortment of ethnic jewellery designs. These designs may therefore be highly valued in both domestic and international markets. Archaeological and cultural sites, museums, and other establishments maintain traditional ethnic jewellery designs.…
Study of the colour-tone variation of faceted stones depending on the number of facets of standard cuts for lighter-toned gems
Study of the colour-tone variation of faceted stones depending on the number of facets of standard cuts for lighter-toned gems The value of light coloured gems could be increased by improving colour-tone. This could be achieved by changing the number of facets of standard cuts. There are several other factors that affect the cut quality…
Development of Fracture Fillers for Enhance Optical Properties in Sapphire Gemstones using Rutile and Quartz
Development of Fracture Fillers for Enhance Optical Properties in Sapphire Gemstones using Rutile and Quartz The gem industry lacks durable, non-toxic fracture-filling materials specifically designed for sapphires. Many existing fillers degrade over time, lack stability under heat and pressure, or contain substances that may be hazardous to the environment. A reliable and sustainable solution is…
Exploring the Potential of Pearl Culture in the Coastal Waters of Trincomalee, Sri Lanka: A Research Initiative with Economic and Environmental Benefits
Exploring the Potential of Pearl Culture in the Coastal Waters of Trincomalee, Sri Lanka: A Research Initiative with Economic and Environmental Benefits Sri Lanka, historically known as the “Pearl of the Indian Ocean,” has been renowned for its rich marine resources, particularly its natural pearl fisheries. The Gulf of Mannar, located between Sri Lanka and…
Publishing a Video Book on Correct Geuda Identification
Publishing a Video Book on Correct Geuda Identification Accurate identification of suitable geuda sapphires before heat treatment is essential for successful enhancement. This year, we will publish a printed book on geuda heat treatment and identification. However, identifying geuda varieties using photos alone is challenging. Therefore, this project aims to publish a book with integrated…
Introduction of Nano-Color Gold Alloy for Jewellery Manufacturing
Introduction of Nano-Color Gold Alloy for Jewellery Manufacturing The goal of this proposal is to introduce innovative nano-colored gold alloy materials and soldering materials into the jewellery industry. These advanced materials will provide new possibilities for jewellery design and manufacturing, with a focus on achieving unique colors, enhanced durability, and improved soldering performance. Objectives To…
Development and Evaluation of Analytical Methods for the Detection of Irradiation Treatment in Gemstones
Development and Evaluation of Analytical Methods for the Detection of Irradiation Treatment in Gemstones Gemstones are often irradiated to enhance or alter their color, a process that can pose challenges to gemological identification and authentication. Currently, there is a significant need for reliable, accurate, and non-destructive methods to detect irradiation treatments. This project aims to…
Advanced Analytical Laboratory
A laboratory facility equipped with cutting-edge instrumentation and staffed by qualified gemologists and materials scientists. This laboratory specializes in the scientific examination of gemstones and precious metals, offering high-precision services such as gemstone identification, origin determination, detection of treatments & enhancements, quality grading, metal purity testing, authentication of finished jewellery. Advanced Analytical Laboratory UV-Vis Spectroscopy…
Gemmological Laboratory
This is a specialized facility equipped with advanced instruments dedicated to the identification, analysis, and certification of gemstones. It plays a vital role in the gem and jewelry industry by verifying the authenticity of gemstones, assessing their quality, and detecting any treatments or enhancements they may have undergone. Gemmological Laboratory Polariscope Used to measure optic…
Gem Treatment Laboratory
This is a laboratory playing a crucial role in ensuring transparency and integrity in the gem trade. Key functions of a Gem Treatment Laboratory include conducting common treatments such as heating, irradiation, fracture filling, dyeing, coating, and diffusion Gem Treatment Laboratory High Temperature Vertical Type Tube Furnace Maximum temperature 1800 °C Operation Atmospheric Condition in…
Field Surveying and Sampling Facilities
The Field Surveying and Sampling Facilities are being utilized to survey gem deposits on-site and to collect rock and sediment samples for testing at other laboratories. Field Surveying and Sampling Facilities Power Auger Motorized soil‐sampling equipment powered by a small petrol engine (around 65 cc), using a helical screw (or hollow stem) bit to bore…
Geochemical Laboratory
A specialized scientific facility dedicated to the chemical analysis and characterization of Earth materials such as rocks, minerals, soils, sediments, and fluids and innovations related to them. Geochemical Laboratory Distilled Water System Used to produce Distilled water, by boiling and condensing water Output Rate: 4 litres of high-quality distilled water per hour Glass Material: Made…
GIS and Mapping Laboratory
The GIS and Mapping Laboratory utilizes institutional research objectives to analyze and visualize gem-related spatial data. GIS and Mapping Laboratory Two High-performance Desktops and GIS Software GIS Software Operation Product information of GIS software — ArcGIS Pro 3.4.3 Advanced spatial analysis, image processing, and 3D visualization High-performance large-format inkjet printer Canon imagePROGRAF TM-3500 Large-Format Printing…
Mineral Processing Laboratory
A specialized facility dedicated to the study and sample processing for extracting valuable minerals and metals from ores and secondary resources, with an emphasis on sustainable practices and resource efficiency. Mineral Processing Laboratory Ball Mill Key Technical Features Speed 400-800 rpm 0.1-20 μm Final fineness 1 grinding station for 4 jars of which total is…
Upgrading existing laboratory to an accredited premium service laboratory in Sri Lanka
Upgrading existing laboratory to an accredited premium service laboratory in Sri Lanka The goal of this proposal is to obtain ISO/IEC 17025 accreditation for a laboratory dedicated to testing and quality assurance in the gem and jewellery industry. This standard ensures that laboratories meet international standards of competence and are capable of producing reliable testing…