Mirror polish : Skilled technology of polish and grinding,Without concave-convex, without pin hole, highly smooth and shiny Skilled technology of inlays : Inlays cubic zircon under high microscope which were man-made, the location of stone is very accurate and solid, not easy to fall off! Lasting and Anti-fade :Surface thickened platinum, durable color stability, even if the plating layer faded, just use the wash silver or silver cloth can be used to restore the jewelry bright