This listing is for one ring being the female version of what is also offered as a set. Seen here at 6mm wide with a 2mm white diamond and a 1.5mm green diamond incased in 14k gold. The ring body is niobium zirconium damscus in the "Hybrid" ring design. 

Materials: niobium, zirconium, Titanium 14 yellow gold - 1.5mm green diamond / 2.0mm white diamond - 14k bezels