Diamond: .20 ct.t.w. Blue sapphire: 0.66 ct.t.w.; 18K yellow gold/blue sapphire/diamonds/crystal; Made in Italy; All gemstone carat weights (tcw) are approximate; variance may be 0.05 carat.; Most gemstones, including blue and black diamonds, are treated to enhance their luster. Some treatments are temporary and may require special care.; Photo may have been enlarged and/or enhanced; Imported