Two octagonal cut natural Amethyst are set in open mount, with diamonds set at the juncture of a side and lower edge facet. Descending sized diamonds follow along the large sides of the octagon. A black enamel radial band, north and south of thew gem. 18.56 carats of amethyst, and approximately .53 carat of VS G color diamonds. The pair weigh 8.90 grams. Refer to IAS report for details.