Shenzhen Fable Jewellery Technology Co., Ltd., is located in Shenzhen--the jewelry city in China. Relying on its particular geographic location and the history development advantage, Shenzhen has been the biggest jewellery manufacturing base and trading distributing center. We press close to this leading market, specialized in R&D, Produce, Marketing the gem testing instruments, we aim to produce a full range series of superior quality, high cost-effective professional instruments. Up to present, our instruments are found in most of Chinese gemological institute and exported around the world.