Certified Gemstone Gallery
A curated showcase of premium natural gemstones examined, identified, and certified by FGL (Finest Gem Lab) — Sri Lanka's premier gemological laboratory.
Certified Gemstone Showcase
Every stone featured in our laboratory has undergone rigorous optical, physical, and spectroscopic evaluation.
RubyNatural Pigeon Blood Ruby
Exceptional natural ruby with vibrant red saturation, examined and certified by Finest Gem Lab.
SapphireCeylon Royal Blue Sapphire
World-renowned natural Ceylon blue sapphire displaying vivid saturation and superior transparency.
EmeraldNatural Fine Green Emerald
Vibrant green emerald showcasing exquisite clarity, natural inclusions, and master lapidary cut.
SpinelNatural Ceylon Red Spinel
Exquisite untreated natural spinel tested for crystal structure and optical properties at FGL.
Precious Gemstone Varieties Certified at FGL
Sri Lanka is historically acclaimed as *Ratna Dweepa* (Gem Island). FGL specializes in certifying the island's most treasured mineral species.
Ceylon Blue Sapphires
Celebrated globally for their cornflower to royal blue hues, exceptional luster, and unheated purity mined in Sri Lanka's historic gem gravels.
Padparadscha Sapphires
The rarest of corundums, possessing an exquisite delicate blend of lotus pink and sunset orange that defines Sri Lankan gemological heritage.
Precious Rubies & Spinels
Rich chromium-bearing corundums and spinels evaluated for color intensity, crystal integrity, and definitive treatment detection.
Chrysoberyl & Alexandrite
Phenomenal color-changing alexandrites and sharp cat's eye chrysoberyls examined using advanced optical and spectroscopic instruments.
Scientific Testing & Analysis Standards
Our gemological laboratory employs international standard testing methodologies to ensure absolute accuracy and authenticity.
Spectroscopic Fingerprinting
UV-Vis-NIR and FTIR spectroscopy to identify mineral composition and detect synthetic growth or heat treatments.
Microscopic Inclusion Analysis
High-magnification darkfield and polarized microscopy to determine natural versus synthetic origin and geological genesis.
Refractive & Specific Gravity Testing
Precise optical refractometry and hydrostatic specific gravity measurement ensuring accurate mineral identification.
Geographical Origin Determination
Trace element and inclusion profiling comparing gemstone signatures with international reference databases.
Gem Gallery & Certification FAQs
Common questions about certified gemstone analysis and reports.
What information is provided on an FGL gemstone certificate?
Each FGL report provides comprehensive scientific data including mineral species, variety, carat weight, measurements, colour grade, cut & shape, transparency, origin assessment, and explicit treatment status.
How does FGL distinguish unheated from heated sapphires?
FGL gemologists examine microscopic rutile silk inclusions, discoid fractures, and spectroscopic absorption bands (such as FTIR OH-stretching bands) to definitively identify heat treatment or absence of enhancement.
Can I verify certificates for gemstones shown in this gallery?
Yes. Every certified gemstone is issued an authentic FGL Report ID. You can enter any valid report ID on our Verify page (fgl.lk/verify) to inspect matching laboratory records instantly.
How can I submit my gemstones to FGL for laboratory testing?
Gem merchants, jewelers, and private collectors can submit loose or mounted stones directly to our laboratory in Beruwala, Sri Lanka, or contact our team online to schedule intake.
Have an FGL Gemstone Report to Verify?
Verify your gemstone certificate online instantly by entering the Report ID to review complete scientific laboratory records.