One 14 karat white gold ring designed by Christopher Michael ste with a  1.69 carats oval tanzanite, blue violet vivid color, FLAWLESS TO VVS clarity, cut grade very good, measuring 6.3 mm wide, 8.5 mm long. Tanzanite is accented by 34 ideal cut round brilliant diamonds with f-g color an si1 clarity with a total weight of .26 carats. Tanzanite is color enhanced by heating.