Centering an Oval cut diamond weighing 5.27ct. (N color, SI1 clarity), framed by sixteen Old Mine cut diamonds weighing approx. 1.00ctw., fashioned in platinum-topped 18k yellow gold. GIA-5192193190. J.E. Caldwell. Size 5.5.
Founded in 1839 by James Emmot Caldwell, J.E. Caldwell was one of the preeminent American jewelry houses of the time along with contemporaries Tiffany & Co., Marcus & Co. & Shreve & Co. J.E. Caldwell continues to be a major fine jewelry institution in Philadelphia to this day.