This striking ring is marked 925FB, Breuning. It is sterling silver and set with a baguette cut blue topaz in a traised bezel setting to the front.
The ring it self has a brushed finish with little irregular 'windows' to the front and a plain band at the back.
The ring is 15mm wide and measures as a size N1/2.
The ring is new old stock and has never been worn. It still had the original price tag of $350 attached.