Expert Diamond Laboratory

We offer independent expertise in diamonds, precious stones, minerals and related fields. From survey work and appraisals to training, consulting and secure transactions, we provide trusted knowledge and guidance for professionals, investors and private clients worldwide.
  • Eddy Vleeschdrager
  • EXP 2385792
  • Florence Nobels
  • EXP 88268683
  • appraising
  • expertises
  • evaluation
  • survey
  • audit
  • ISO-1724 by EUROCERTICE Lux.2010-20
  • NATO SECURITY CLEARENCE 48542/26542 2010-20

POL – BELLATAIRE

In late 1999, the Lazar Kaplan company announced a new process for "decolorizing" diamonds, meaning that brown diamonds become colorless. The company claimed the process was undetectable and permanent, and...
Logos of organizations Expert Diamond is connected with

Our training

Discover our specialized courses and lectures on precious stones, diamonds, and gemological instruments to enhance your knowledge.

Survey & appraisal

Explore how we can assist with appraisals, consulting, and counterclaim management for your valuable assets.

Hardness 10 | 5th edition

Visit HARDNESS10.BE | DURETE10.BE
or GEM-APPRAISERS.ORG for more information

Expert Diamond is specialized in

  • Survey work
  • Transfer of technology
  • Basic training of personnel
  • Lectures
  • Mining consultancy
  • Security consultancy
  • Counterclaim handling
  • Appraisal for bankruptcy
  • Appraisal of inheritance, legacy
  • Appraisal and evaluation before purchasing
  • Selling precious stones on the market

The multi-colored family of Garnet

The garnet family is notable for its wide variety of colors and a very broad spectrum of gemological data, including structure, density, and refractive index. There are several types of...

The Invaluable Worth of Burmese Sapphires

Burmese sapphires rank among the world’s most coveted gemstones. Their deep royal-blue hue, rarity, and rich history make them a prized choice for collectors and investors alike. Yet their beauty...