Who We Are &What We Stand For
The history, vision, and values driving the global benchmark in independent gemological certification.
Trusted by the World's Finest Jewelers
Founded in 2012, UNI Gem Lab (UGL) has grown into a trusted authority in the independent certification, grading, and valuation of natural diamonds, lab-grown diamonds, gemstones, and fine jewelry — completely free from commercial bias.
Our Vision
To serve as the unassailable global benchmark for trust, precision, and ethical practices in gemological testing and comprehensive jewelry valuation.
Our Mission
To bring clarity, uncompromising integrity, and sustainability to the gem and jewelry industry — empowering clients to make informed, ethical decisions.
Our Values
Scientific rigour, absolute independence, and commercial transparency. Every certificate we issue reflects our commitment to protecting consumers and trade professionals.
Our History & Evolution
What started as a boutique grading facility has expanded into a globally recognized institution, earning the confidence of international jewelers, high-end retailers, and private collectors.
Our labs are equipped with the latest spectrometric and microscopic technology — grading at the absolute cutting edge of gemological science.
World-Class Science Behind Every Report
Every UGL certificate is backed by cutting-edge instruments operated by internationally trained gemologists.
Spectroscopy
UV-Vis-NIR and FTIR analysis to detect treatments, enhancements, and synthetic origin.
Microscopy
High-magnification stereo and polarizing microscopy to identify inclusions and growth structures.
Real-Time QR
Each certificate includes a unique QR code verifiable by consumers globally in seconds.
Tamper-Proof
Cryptographic integrity checks prevent forgery and ensure authenticity at every step.
Environmental, Social & Governance
True beauty extends beyond the physical — it is rooted in the ethical journey of every stone. UGL upholds rigorous ESG principles across our entire supply chain.
Ethical Sourcing
Promoting ethical extraction and Kimberley Process compliance across every segment of the gem trade.
Fair Practices
Transparent business operations with strict anti-corruption policies in every jurisdiction we occupy.
Sustainability
Minimising our laboratory carbon footprint while supporting eco-conscious operations industry-wide.
Community
Investing in gemological education and local talent development to raise global industry standards.
Why Consumers Trust UGL
Every decision we make is governed by one principle: your certificate must reflect the absolute truth.
Zero Commercial Bias
No retailer affiliations. No mining interests. Our graders answer only to science.
Instrument-Verified
Every single assessment is cross-verified by multiple instruments and certified gemologists.
Clear Reports
Written for both trade professionals and everyday consumers — no jargon, just clarity.
Instant Verification
QR codes and report numbers let you confirm authenticity anywhere in the world in seconds.