Learn what a studded jewellery diamond tester must do and how JNSure screens rings, bangles and loose diamonds for CVD, HPHT and CZ in 45–90 seconds.
How to Detect Lab-Grown Diamonds in Parcels and Studded Jewellery
Learn how to detect lab-grown CVD and HPHT diamonds in parcels and studded jewellery, why normal testers fail, and a simple 3-step screening routine.