Featured in this lot is this Art Nouveau Spinel diamond and platinum ring with SGL and GIA paperwork. The ring features a tested, stamped, and polished art nouveau style ring face with platinum construction with an Orianne hallmark and a 'PT950' stamp next to the hallmark. The center stone is a oval modified brilliant step cut natural color changing Spinel stone with measurements of 7.54 x 6.49 x 5.75mm and is transparent with no indications of heating and a violet changing to pinkish purple and a total weight of 2.11 carats. The Art Nouveau style to the face of the ring is decorated with a total of 64 round brilliant cut diamonds that shows a bezel and pave setting with a color gradient of G - H and an average clarity of SI1 - SI3 and a total diamond weight of 0.74 carats. The piece comes complete with SGL (Superior Gemological Laboratory, Inc. a GIA certified lab SGL#: SGLR2043187 with the access code of G7347 at GemRap.com) report and appraisal confirming the above info and giving a total value of $10,370.00. GIA (Gemological Institute of America) Spinel Grading Report#: 2223297456. The ring size is US 7 1/2.