Featured in this lot is this estate art nouveau, black and white diamond, 18k white gold ring with GIA and AIGL paperwork. The ring shows a polished, stamped, and tested 18k white gold ring band with a bright finish and a 18k gold stamp. The ring is set with a natural round cut brilliant black diamond with a weight of 3.16 carats, very good cut grade, and opaque transparency. The estate art nouveau style of setting is profusely decorated with 192 round cut brilliant diamonds with a weight of 2.12 carats, VS2 - SI2 clarity, and F - H color gradient. The piece comes complete with AIGL Inc. (American International Gemological Laboratories, Inc. a GIA certified lab AIGL#: K49E12-EA15027) report and appraisal, confirming the above info and giving a total value of $12,280.00. The measurements of this ring are 1 1/8" x 7/8" x 1 3/4". The ring size is US 6.