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KalGemstone logoKalGemstone

Excellence & Trust

Since 2015 GC in gemology

24h Testing & Certs

Certified master gemologists

Insured Sourcing & Export

5+ countries served

Secure Bank Wire

CBE & Telebirr

KalGemstone

“Shine Like A Gemstone”

Legacy of excellence in gemology since 2015 GC. Authentication and sourcing of the world's finest masterpieces.

Your Trusted Partner in the World of Precious Gemstones.

Explore Collection

  • Gemstone Vault
  • Precision Equipment
  • About & Leadership
  • 24h Gem Testing

Services & Academy

  • Gemstone Testing & Appraisal
  • Equipment Hub & Parts
  • Training Courses & Certification
  • Business Consultation

Headquarters

  • Kal Mining, Megenagna, Addis Ababa 1000, Ethiopia
  • +251941913877
  • WhatsApp Available
  • kalgemstone.vault@gmail.com
  • Hours: Mon – Sun: 9:00 AM – 6:00 PM (EAT)

Trusted Brands We Carry

Zeiss • Presidium • GemOro • Ultra Tec • Grobet • Kassoy • Foredom • Crystalite

© 2026 KalGemstone. Legacy of excellence in gemology since 2015 GC. All rights reserved.

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EXPERTISE & SOLUTIONS

Our Core Services

Certified Gemstone Testing • Precision Equipment Hub • Professional Training Courses • Market Consultation

PRIMARY LABORATORY SERVICE

Certified Gemstone Testing Service

Comprehensive gem species and variety identification, expert consultation, origin determination, and valuation appraisal.

Turnaround: Completed within 24 Hours

Species Identification

Complete mineral composition and variety verification.

Origin Determination

Advanced geographic origin testing using distinctive inclusions.

Market Valuation

Expert consultation and replacement appraisal included.

Secure Handling

Insured custody and strict vault protocol during testing.

METHODOLOGY

Our 3-Step Testing Process

01

Initial Consultation & Visual Inspection

Examine the gemstone visually with 10x achromatic loupes and stereomicroscopes while discussing client certification requirements.

02

Basic Gemological Testing

Standard non-destructive tests including hydrostatic specific gravity, Mohs hardness assessment, optical character, and refractive index (RI) measurements.

03

Advanced Equipment Analysis

In-depth spectroscopic analysis, UV fluorescence, darkfield microscopy, dichroscope pleochroism, and polariscope optical orientation.

Important Laboratory Policy: Certified gemologists compile an official report with detailed findings and recommendations. Please note: We do not perform testing using photography; all assessments require the gemstone to be brought physically to our Addis Ababa laboratory.

Laboratory Equipment Used:

SpectrometerRefractometerGemological MicroscopeUV Light (SW/LW)DichroscopePolariscope
EQUIPMENT HUB

Equipment & Precision Machinery

We supply professional gemological testing instruments, diamond testers, stereoscopic microscopes, and precision lapidary faceting machinery for businesses and mining operations across East Africa.

Authorized Distributor: Zeiss, Presidium, GemOro, Ultra Tec, Foredom, Kassoy, Grobet, Crystalite

Support Included: Free installation, training, warranty, and spare parts inventory

Explore Precision Tools

Key Machinery Categories

Optical Spectrometers

Absorption spectra analysis

Multi-Testers

Diamond & Moissanite detection

Stereo Zoom Microscopes

Darkfield & inclusion analysis

Precision Faceting Rigs

Ultra Tec digital master cutters

ACADEMY

Training Courses & Certification

Learn directly from certified gemologists with small class sizes, professional equipment access, and career networking opportunities.

4 Weeks

Foundations of Gemology

Fundamental identification of natural, synthetic, and treated gemstones using standard laboratory instruments.

Enroll Now
2 Weeks

Advanced Instrument Operation

Hands-on mastery with spectrometers, digital refractometers, polariscopes, and darkfield microscopy.

Enroll Now
6 Weeks

Precision Lapidary & Faceting

From rough crystal orientation to precision digital faceting using modern Ultra Tec machinery.

Enroll Now
3 Weeks

Diamond & Colored Stone Grading

Clarity, color saturation grading, inclusion mapping, and international market valuation methodologies.

Enroll Now
STRATEGIC ADVISORY

Expert Business Consultation

Whether you need strategic guidance on rough crystal acquisition, establishing a lapidary workshop, or export compliance, consult with CEO & Master Gemologist Kaleab Belay.

Book Consultation