Vintage 1960s Solitaire Diamond Engagement Ring in 14k.  This fine Mid-Century engagement ring features a .17 round brilliant cut diamond that is finished in 14 karat white gold. The diamond is set with four (4) prongs over a dainty disc mounting that features small grooves to enhance the brightness of the stone. The shoulders simply plateau below the stone which was a classic vintage style from the 1950s.