Old Virginia Gem Co. supplies exceptionally rare gems, gem rough, estate jewelry, antiquities, and art to museums, jewelers and collectors worldwide.
This is most likely a one of a kind set. This set was purchased from a wealthy area of Virginia. The gold is very fine, looking more like 20K than 18K
The workmanship (especially on the ring) is fantastic and has very small hallmarks on the outer part of the shank. (see photos)
I am almost positive these are from Europe, especially with the symbols that appear on the ring and Florentine style.