Fable focused on research and develop,produce and marketing Jewelry Detection and Identification Instruments, specialized in Gem Microscope, Gem Refractometer, Table Spectroscope, Hand-held Spectroscope (Grating Spectroscope and Prism Spectroscope), Calcite Dichroscope, Table Polariscope, Portable Polariscope, LW/SW Ultraviolet Lamp, Optic Fiber Illumination (Cold Light Source), Diamond Proportion Tester, Hardness Pencil, Gem Indentifying Travel Lab etc.And some products are patented in China.Fable insists on the principle of "Excellent Quality, Reasonable Price, Honesty, Cooperation". Fable take firm steps to achieve continuous development at home and abroad by offering advanced products with competitive prices and best service.