Onyx Pave Diamond Cocktail Ring in 18k White Gold.  This fabulous modern cocktail ring features 1.63 carats of diamonds set in and around a cabochon cut onyx and finished in 18 karat white gold. The center of the ring is a domed cluster of pave diamonds sitting neatly inside the circular cabochon onyx. Outside of the onyx is a large halo consisting of .55 carats of round cut diamonds. All together this ring makes a large and striking impression and achieves a beautiful contrast between the black and white elements.