IDT Gemstone Certification
Colored gemstones vary widely in their composition, treatments, and origin. Stones that appear similar may differ significantly in identity, value, and durability. Professional laboratory testing provides the information needed to accurately understand the gemstone you own or intend to purchase.
IDT Gemological Laboratories Worldwide offers Gemstone Certification services for loose gemstones, laboratory grown gemstones, and gemstone jewellery. Using advanced gemological testing methods and established analytical procedures, our experts identify gemstone species and varieties while documenting important characteristics and treatments.
Our reports help consumers, jewellers, manufacturers, and retailers make informed decisions with greater confidence and transparency.
IDT Gemstone Certification Services
Scientific verification and grading for colored gemstones — loose or studded.
Natural Gem Testing Report
A comprehensive identification report for natural colored gemstones.
The report determines the gemstone's species and variety through scientific examination and records observable characteristics relevant to the stone's identity.
Report Features
Gemstone species identification Variety determination Refractive index analysis Specific gravity testing Spectroscopic examination Inclusion analysis Pleochroism observations, where applicable Fluorescence testing Treatment identification and disclosure Origin indicators, where measurable High resolution imaging
QR based digital verification
Suitable for loose colored gemstones intended for purchase, resale, insurance, or personal documentation.
Lab Grown Gem Testing Report
A specialised report designed to identify laboratory-grown gemstones.
Using advanced analytical techniques, the report confirms synthetic origin by evaluating diagnostic characteristics associated with laboratory growth processes.
Report Features
Gemstone species identification Confirmation of laboratory-grown origin Growth structure analysis Spectroscopic examination Diagnostic inclusion analysis Treatment identification and disclosure, where applicable High resolution imaging
QR based digital verification
Ideal for retailers, manufacturers, and consumers seeking clear disclosure and accurate documentation of laboratory-grown gemstones.
Studded Gem Testing Report
A certification service for jewellery containing mounted colored gemstones.
Mounted gemstones require non-destructive examination techniques that preserve the integrity of the jewellery while allowing accurate assessment of the visible characteristics of the stones.
Report Features
Jewellery description Gemstone identification Determination of natural or laboratory-grown origin, where possible Treatment identification using non-invasive techniques Estimated gemstone weight in mounted condition Shape and cutting style information Metal details High-resolution jewellery imaging
QR-based digital verification
Suitable for rings, earrings, pendants, necklaces, bracelets, and other gemstone-studded jewellery.
Why Choose IDT Gemstone Certification?
Independent laboratory assessment
Advanced gemological testing methods
Experienced gemological professionals
Treatment identification and disclosure
QR enabled digital report verification
Certification services for loose gemstones and gemstone jewellery
Colored gemstones have been treasured for centuries for their beauty, rarity, and significance. Independent certification helps ensure that these gemstones are accurately identified and professionally documented. Through scientific evaluation and detailed reporting, IDT Gemstone Certification provides reliable information about a gemstone’s identity, characteristics, and observable treatments, helping consumers and industry professionals make informed decisions with greater confidence and transparency.
