Ladies 18kt White Gold 5.90ct Tanzanite and Diamond Ring.Ladies 18kt white gold Tanzanite and Diamond cluster ring. This ring features a sugar loaf cut Tanzanite stone weighing 5. 90 carat weight . This modified cusion cut Tanzanite stone is surrounded by a halo of 26 x 0. 52 total carat weight of Brilliant cut diamonds . Current ring size is 6 3 4. This ring can be resized. Very good condition. Accompanied by a Van Rijk appraisal certificate.