Our gemological instruments are designed by professional gemological institute in China. And we not only have gemologist support but also own engineers in optical and electronics, so we can do OEM gem instrument for customers.

Our main exporting products include gem refractormeter, diamond grading lamp, UV lamp and gem microscope. They are durable and easy to operate, widely-used for gemological institude, jewellery authenticating center, jewellery shop, gemological school and gem enthusiast.