The IGA-experts

At Independent Gemological Appraisers Worldwide, our experts cover a wide range of fields of expertise. Contact your local expert with your question or project.
Click on the map or scroll down the page to find your local expert.

Eddy Vleeschdrager
Belgium, Antwerp

Florence Nobels
Belgium, Antwerp

Claude Nobels
Belgium, Antwerp

Ilario Solenne
Italy, Milan

Erika De Guio
Italy, Milan

Gérard Quintin
Cochabamba, Bolivia
Gaston d'Aquino
Central, Hong Kong

David Liu

Ouattara Youssouf
Abidjan, Cote d’Ivoire

Charles Sand
Santa Catarina, Brazil

Guillaume Allard

Emad Olabi
Dubai, UAE

刘厚祥 David Liu

National Gemstones Testing Centre
11/F, A Tower, No. 1701 Century Av. Shanghai
E: davidliungtc@vip.163.com
T: +86 13901835905 & +86 02150158206