SWISS Sculptural Hawk Eye Gemstone Ring Band In 18Kt Gold Fabulous contemporary ring band with gorgeous design, created in Switzerland back in the 2000. The main focus is the carved piece of Hawk's Eye gemstone which mounted in a customized setting made up in solid yellow gold of 18 karats. Hawk's Eye: The main body of the ring is carved from a single piece of Hawk eye gemstone. Hawk's Eye is a captivating gemstone known for its exquisite appearance and unique optical characteristics. It is a variant of the mineral quartz, primarily composed of fibrous crocidolite and iron oxides. Weight: 29.40 Grams, (15.65 Dwt). Size: 6 and cannot be sized up, only downsized. Measurements: The width is 23 mm (0.91 Inches) and raise 7 mm over the finger. Hallmarks: Stamped with the maker's mark and the mark for the assay of the 18kt gold, ".750". Very good conditions. Upon Request, Auction House may provide an appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.