IGL Professional Jewelry Appraisal Service
Equipped with AIGS international gemological certification, providing professional testing and identification for your gemstones.
Our Gemologists
Ms. Tan Hoay Ying, Director of ICRYSTAL, graduated from the Asian Institute of Gemological Sciences (AIGS) in Bangkok, Thailand, and obtained the title of Accredited Gemologist.
The institute is a well-known gemology training institution in Asia. Its courses cover gemological theory and practical identification, and the certification is awarded only after systematic study and professional evaluation.
The institute is a well-known gemology training institution in Asia. Its courses cover gemological theory and practical identification, and the certification is awarded only after systematic study and professional evaluation.
Our Services
Currently, IGL is an internal gemstone identification and quality management system for ICRYSTAL, focusing on naturalness verification and consistency management. Every piece undergoes strict screening and inspection before shipment to ensure it meets brand standards and maintains stable quality.
All appraisal results are recorded in an internal database, enabling traceability and standardized management.
All appraisal results are recorded in an internal database, enabling traceability and standardized management.