Walcom International Industry Limited, established in 2006, is specialized in jewelry testing tools, analyzing & testing instruments, medical devices & health care products. In the field of jewelry testing tools, we are dedicated in providing the best competitive products and service to our customers.

Our jewelry testing tool product line covers Diamond Testers, Jewelry Loupes, Spectroscopes, Polariscopes, dichroscopes, Jewelry Microscopes, Digital Scales, Ring Sizers, Diamond Cloth, Gauges & Calipers, Heart & Arrow Scopes, Fiber Optic Illuminator.

We began to produce and sell JEM series diamond testers since early 2006. Up to now, we produce JEM-II diamond tester……