Level 23, World Trade Centre, Colombo 01, Sri Lanka
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Every gemstone offered by Ceyonts Gems and Jewelry is certified by internationally recognized gemological laboratories, ensuring complete authenticity, origin verification, and buyer confidence.
In the gem industry, a certificate from a reputable gemological laboratory is the gold standard of authenticity. It provides an independent, expert evaluation confirming that a gemstone is what it claims to be — including its origin, species, treatment status, and quality characteristics.
For Sri Lankan gems specifically, a certificate confirming "Ceylon" origin significantly enhances the value and desirability of the stone. Ceylon sapphires, for example, command a premium over sapphires from other origins due to their unique color quality and historical prestige.
At Ceyonts Gems and Jewelry, we insist on certified gems because we believe every buyer deserves the security of independent verification — not just our word.
Certified by trained gemologists using advanced equipment — spectrometers, microscopes, and refractive index measurement.
Certificates protect buyers from synthetic stones, misrepresented origins, and undisclosed treatments that affect value.
Certified gems, especially unheated Ceylon sapphires, hold and appreciate in value better than uncertified stones.
Certificates from GIA, GRS, and NGJA are recognized and accepted by gem dealers, auction houses, and jewelers worldwide.
We work with the most respected gemological laboratories in the world. Each certificate provides an authoritative, independent analysis of the gemstone.
The world's foremost authority in gemology. GIA created the international gem grading standards (the 4Cs) and is universally recognized as the most trusted name in gem certification. A GIA certificate is the gold standard for gem buyers worldwide.
Switzerland-based GRS is one of the most respected laboratories for colored stones, particularly for origin determination and treatment disclosure. GRS certificates are highly regarded by international gem traders, auction houses, and collectors for colored gemstones.
The official Sri Lankan government gem certification authority. NGJA certificates are specifically authoritative for confirming Sri Lankan (Ceylon) origin — making them particularly significant for buyers seeking to verify that a stone is genuinely from Sri Lanka.
One of the largest independent gem certification laboratories worldwide, with offices in Antwerp, New York, Mumbai, Hong Kong, and more. IGI certificates are widely accepted in the international gem and jewelry trade.
Based in New York, AGL is highly respected for its comprehensive country-of-origin reports and treatment disclosure, particularly for high-value colored stones. AGL is a preferred lab for the US gem and auction market.
One of the oldest and most prestigious gem labs in the world. Gübelin certificates are highly valued by collectors and auction houses, especially for top-quality sapphires, rubies, and emeralds. Their origin determination is among the most authoritative.
Unheated gemstones command a significant premium because they represent the stone in its natural state. Heat treatment is a widely accepted practice that enhances color and clarity, but unheated Ceylon sapphires are particularly prized by collectors and investors.
A certificate confirming Sri Lanka (Ceylon) origin typically adds 15–30% or more to a sapphire's market value. The "Ceylon" designation is globally recognized as a hallmark of superior quality.
All certificates from major labs can be verified online using the certificate number. We encourage buyers to independently verify any certificate through the issuing laboratory's official website.
At Ceyonts, we display the actual certificate number from the issuing lab. Certificate photos are provided upon serious buyer inquiry. We never fabricate or alter certificates — ever.
