Mid-Century Diamond & Onyx Ring in 14k Yellow GoldMid Century Diamond Onyx Ring in 14k Yellow Gold. This Mid Century cocktail ring features . 23 carats of diamonds finished in black onyx and 14 karat yellow gold. Thirty four (34) . 0067 carat diamonds are pave set in the center of a gorgeous, polished black onyx setting. The sleek, Mid Century head of the ring is elongated and mounted on an engraved 14k yellow gold band. The gallery and shoulders feature linear, earthy shapes that add a touch of