VGM230 is a portable continuous zoom jewelry and gemology microscope which has wide field, crisp image, strong 3D effect and high cost-effective, so it is designed for those jewelry stores and gem appraisal enthusiast. This microscope adopts optical imaging system and dedicated lens that suitable for gem appraisal and identification, which fully meet the appraisal needs of all kinds of diamonds, crystals, gems and other jewelries. VGM230 is used in jewelry identification to observe the intrinsic and surface characteristics of the sample and is invisible to the naked eye. It is an indispensable gem identification instrument for the identification of synthetic products, optimized treatments and artifacts.
Application:
Identified the surface characteristics of the sample: gem’s growth striation, etch fugure, scratch, damage, symmetry, split surface (bubble, gloss difference) etc.
Observe the intrinsic characteristics of the sample: inclusions' type, shape and quantity, double crystal surface, growth striation, color distribution characteristics, initial cleavage, defect etc.
Observe the doubling of facet edge: the doubling of facet edge of the gems with high birefringence, such as zircon(DR=0.059), olivine (DR=0.036) and tourmaline (DR=0.078).