Featured in this lot is this opulent 1.77ct tanzanite diamond and platinum ring with GGA paperwork. The ring features a polished, stamped, and tested platinum construction that shows markings on the inside band of the ring as follows: Oscar Friedman - PT950. The ring shows a triangular raised ring face with a lattice underneath that shows a natural triangular brilliant faceted cut tanzanite centerstone that measures 8.81 x 8.17mm and shows a type 1 clarity and shows a coloration of Bluish Violet and excellent symmetry with a total weight of 1.77ct. Tanzanite Is a very rare precious gemstone that is only found in the Usumburu Mountains that border the Umba Valley of northern Tanzania. Originally discovered in 1967 by Tiffany & Company who named the stone Tanzanite. Tanzantite is unique due to its exceptional pleochroism (an optical phenomenon in which a stone has different colors when observed at different angles). This example is a nearly flawless eye clarity and unbelievable depth with transparent finish. The centerstone and the shoulders of the ring are decorated with a total of 22 round brilliant cut diamonds that shows measurements of 2.7 x 2.6mm and shows SI1 - SI2 clarity with G-H coloration and a total diamond weight of 1.28cts. The piece comes complete with GGA(GemAssure Gemological Appraisals, GGA Appraisal Number#: GGA070071 and trace number: RN036499) report and appraisal confirming the above info and giving a total value of $15,740.00. The ring size is US 6 1/2. RN036499.