This sweet band from the 70's is not mark or signed anywhere. The jeweler tested and said at least 10K. Five small full cut diamonds are arranged across the front of this band. There is a white gold accent on either side of the row of diamonds. The ring size is 5 1/2. A lovely yellow gold band bought from my neighbor, nice and charming. (the neighbor too) The band has 4 twisted bands that blend in back.