Center for gem and jewellery
Center for gem and jewellery
Welcome to CGJ

Center for Gem & Jewellery (CGJ) - Testing Laboratory is an independent gemological laboratory. We specialize in identifying gemstones, analyzing the enhancement of gemstones, identifying rare gemstones and grading diamonds. We have with us highly experienced and qualified gemologists in our gem laboratory with GG [GIA] & FGA qualifications. Additionally, our laboratory is equipped with advanced instruments which are of high quality and reliability.

Gemmological Association of Great Britain Gemological Institute Of America
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Testing All Treatments
Testing All Treatments
  • Heat treated
  • Diffusion processors
  • Types of filling
  • Identify assembled stones
Advanced Testing
Advanced Testing
  • Beryllium diffusion testing
  • Gem RAMON Spectroscope
  • FTIR
  • GL Spectrometer(UV VISIBLE)
Origin Testing
Origin Testing

Identify the origin country of the gemstone

Diamond Testing
Diamond Testing

Identifying natural diamonds from stimulants.

ALL TESTINGS CONDUCT BY GIA FGA QUALIFIED GEMOLOGISTS
GEM CERTIFICATES
  1. Individual Gem Certificate with Color Photograph (IGC).
  2. Lot Identification Certificates: (LIC).
  3. Individual Gem Certification Cards (IGCC).
  4. Advanced Testing Certificates (ATC).
Contact us

Center for Gem & Jewellery Pvt Ltd - (CGJ)
No. 245 1-2, Kubra Building,
Galle Road, Colombo 4,
Sri Lanka.

Tel : +94 112 555 623
Email : info@cgjlk.com