Gemstone Certification

Every single gemstone offered by Royal Sri Lanka Gems is independently tested and authenticated by certified gemological laboratories before being listed for sale. We prioritize transparency, authenticity, and confidence in every luxury purchase.

Our gemstones are evaluated using advanced spectroscopic and microscopic testing techniques by trusted bodies, including:

• LGL GemLab (Lanka Gem Lab): Official identification reports detailing species, variety, weight, dimensions, color grading, and treatment disclosures.
• National Gem and Jewellery Authority (NGJA): Government-certified export and testing authentication for international orders.
• International Gem Laboratories: Reports from GIA, GRS, or CGL available upon request for premium collections.

• Natural Origin: Confirms the gem is 100% natural, formed by geological processes.
• Treatment Disclosure: Complete verification of treatments (e.g., Un-heated / Heated status).
• Exact Weight & Measurements: Precise carat weight ($ct$) and millimeter dimensions.
• Color & Optical Effects: Verifies color tones and special phenomena (such as colour-shifting or blue sheen adularescence).