Fine jade ring set with high quality 'glassy' white jadeite cabochon and accented with diamonds in 18k. The jade has a very fine grain crystal and is noted for its transparency. In jadeite, this '玻璃种' or glassy type is distinguished from mere icy or translucent jade. Glassy jadeite has the topmost clarity in terms of transparency. Specifically, these is icy white jade that displays an optical phenomenon known in the jade trade as '起莹光' or luminescence. Luminescence appears as a silvery white…