18k yellow gold with white gold accents. The center stone is an absolutely breathtaking convex fancy cut citrine that protrudes from the metal and catches light from all directions. Around the center stone there is a halo of 28 diamonds with G/H color and SI1 Clarity. The diamonds are set on the white gold accents to provide a powerful contrast between the finely polished gold band. 0.34 carats total diamond weight. Size 7, sizable.