Gem Information   Gem Type: Sona Simulated Diamond; Center Stone Weight : 3.3 Carat; Center Stone Shape : Emerald Cut; Center Stone Size : 7*10mm; Center Stone Color: White Sapphire; Center Stone Setting: 4 Prong; Ring Width: 1.6mm; Band Stone Shape: Round;   Band Stone Color: White;   Band Stone Total Weight:   Approximately 0.3 Carat; Ring Set Information   Metal: Sterling Silver; Plating Color: White Gold; Rhodium: Yes; Nickel Free: Yes;