Andrew Lucas, Dean of GUILD Gemology Education, Invited to Speak at ICA 2025 Congress in Brazil
Andrew Lucas, Dean of GUILD Gemology Education, has been officially invited by the International Colored Gemstone Association (ICA) to attend the ICA 2025 Congress in Brazil. He will deliver a keynote presentation on “The Current Landscape of China’s Colored Gemstone Market.”
As a gemologist who has spent years active in major mining regions and deeply involved in global gemstone markets, Andrew Lucas will present first-hand data and in-depth insights across multiple dimensions, including market supply, supply chain transformation, consumer trends, and industry structure. His talk will provide global industry professionals with an analytical perspective on China’s evolving market dynamics and opportunities.
Key Insights and Discussion Topics
- Supply shortages in high-demand gemstone categories
- Transformation of traditional wholesalers and the rise of new channels
- Shift in consumer behavior from “saving” to “spending”
- Category substitution following fluctuations in the natural diamond market
- Emerging trends of younger, female, and cross-industry professionals
Drawing on structural data from thousands of GUILD Gemology Education students, the report explores the disruptive impact of social media and live streaming, as well as the rapid rise of emerging categories such as colored sapphires and tourmalines.
Together, these insights offer a comprehensive portrait of the vitality and complexity of China’s colored gemstone market, providing valuable perspectives and practical references for international professionals seeking to understand China’s jewelry landscape.

