Approximately 12.4mm beads Inner diameter 18cm Myanmar origin Impregnation treatment applied These rubies have a beautiful deep color and sparkle with a 64-facet cut. They have a substantial weight, giving them a strong presence. The surface is not glossy, but rather matte. The texture is slightly rough, with some whitish areas. Therefore, despite the large size, the price is reduced. Great value. There are some natural indentations. See the last photo.