Mid-Century Three Stone Diamond Ring 14k Yellow Gold. This Mid-Century three stone diamond ring is inspired by Art Deco design. The center .51 carat old European cut diamond is bead set with octagon decorative bezels. The center diamond is flanked by two (2) old European cut diamonds set in the same fashion with a total side diamond weight of .46 carats. The 14 karat yellow gold setting features wonderful open filigree work, engraved detail and repousse detail visible from every angle. This three stone diamond ring is perfect as an engagement ring or a right hand ring.