18K yellow gold with 3.21ct ruby slice & white diamond pavé with handcarved white opal. A Ruby, Diamond & Opal Pebble Ring in 18K yellow gold. The 3.21ct ruby slice is framed by diamond pavé and set in handcarved white opal. This ring is a size 54 and can be resized to fit. Material: Gold Karat: 18K Stone: Opal & Ruby,Diamond Stone Carat: 3.21Ct