ISO 9001:2015
Koustav Gemological Laboratory utilizes advanced spectroscopic, refractometric, and microscopic testing protocols to deliver authentic diagnostic certificates with tamper-proof digital QR verification.
Direct lookup into our central laboratory database to verify refractive index, specific gravity, and authenticity status.
Equipped with advanced gemological instruments to deliver non-destructive examinations for precious stones, semi-precious minerals, and diamonds.
Definitive scientific separation of natural gemstones, lab-grown synthetic counterparts, and treated specimens using refractive index and optic character analysis.
Comprehensive evaluation of diamonds adhering to international 4C standards: Carat Weight, Color Grading, Clarity Assessment, and Precision Cut proportions.
Deep darkfield and polarized microscopic examination of internal crystal inclusions, rutile needles, and fluid feathers to determine natural origin.
Absorption spectra testing and UV fluorescence imaging to detect thermal treatments, beryllium diffusion, and irradiation enhancements.
High-precision electronic hydrostatic density determination calibrated for mineralogical classification and gemstone verification.
Issuance of tamper-proof PVC plastic identification cards and A4 certificates embedded with cryptographically verifiable QR security seals.
Our rigorous 4-step diagnostic protocol ensures uncompromised precision and traceability for every submitted specimen.
Specimen is weighed, photographed, and assigned a unique reference code in the secure laboratory register.
Refractive index, birefringence, optic character, and hydrostatic specific gravity are accurately measured.
High-magnification darkfield microscopy to examine internal crystal growth patterns and diagnostic inclusions.
Diagnostic report is encrypted, backed up, and printed with an instant tamper-proof QR verification seal.