This gorgeous sterling cuff bracelet is 1-1/4" wide. It's a thicker cuff, about 4mm in cross-section, and I think the cuff construction is hollow. The stone is 22mm x 28mm in a pentagonal shape. The color is robin's egg blue to green with a black matrix. The marks on the inside of the bracelet are "D E" and "sterling."
The cuff has an asymmetrical pattern-- on one side of the stone there are simple parallel lines; on the other side of the stone there is a wider pattern carved in the sterling.