Tiffany & Co Diamond full eternity ring, American, circa 1940.

This piece is in good condition commensurate with its age.

Tiffany & Company is an American jewellery and silverware company founded by Charles Lewis Tiffany (1812-1902) and John Burnett Young (1815-1859) in New York City in 1837. The store initially operated as a "stationery and fancy goods emporium" in lower Manhattan, soon taking on a new partner and with him a new name, Tiffany, Young and Ellis. The name became Tiffany & Co in 1853 when Charles Tiffany took control, and around that time the firm established itself as a purveyor of silver and jewellery of their own design and manufacture.

Tiffany was a pioneer on various fronts, including silversmithing, jewellery design, and gemmology, all of which won them numerous accolades and grand prizes from International Exhibitions throughout the nineteenth and into the twentieth century. Of particular note was Tiffany’s promotion of the science of gemstones lead by George Frederick Kunz (1856-1932), prodigy and Head Gemologist at the firm from 1879 until this death.