Diamonds and emeralds surround oval-shaped opal stud earrings; Diamonds: 0.30 total carat weight; color/clarity: GHI1; Emeralds: 0.35 total carat weight; Opal; 14K yellow gold; 0.6"L; Omega back; Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care; Photo may have been enlarged and/or enhanced; All gemstone carat weights (tcw) are approximate; variance may be 0.05 carat.; Opal is a birthstone for October; Bloomingdale's exclusive; Gemstone Treatment and Care; Imported