Cirari Couture 7.05 ct round cut prasiolite ring is set in 925 sterling silver. It is the perfect shade of green for a prasiolite. It does appear slightly different shades depending on lighting. The sides of the mout have some etching texture to them in a whispy grasslike pattern. Women’s Ring size 7. Can be sized by a jeweler if necessary. Prasiolite is a member of the quartz family and is sometimes called green amethyst.