On 5 -6 August 2025, J-HUB conducted a comprehensive, one-on-one Introduction to Diamond Identification & 4Cs Grading course, led by Gemologist Andrew Loo, this 8-hour tailor-made program combined in-depth theory with hands-on training, designed to build practical, real-world skills.

Course highlights included:
▪︎ Fundamentals of diamond geology
▪︎ Techniques to distinguish natural diamonds from simulants
▪︎ Introduction to the 4Cs (Color, Clarity, Cut, and Carat)
▪︎ Practical grading exercises for Color, Clarity, Cut, and Carat weight
▪︎ Overview of lab-grown diamonds

Upon successful completion, participant received a certification issued by J-HUB.