Black, Starr & Frost is a very well-known and highly regarded American jewelry company. Founded in 1810, the company is the oldest continuously operating jewelry firm in the United States. Here is an extraordinary eternity band that they created. The platinum band is host to 36 glittering Old European cut diamonds, all bead set within channel walls. The Old European cut gained it's popularity in the 1920's and are still seen in some engagement rings today. An exquisite ring with a great history!