Sachi Emerald Pear Studs in Metallic Copper. Sachi Emerald Pear Studs in Metallic Copper. 18k rose plated gold earrings. Emerald and crystal accents. Measures approx 0.5 H. SACR-WL45. EMERALD. Meaning ?happiness? in Japanese and ?luxury? in Korean, Sachi believes that happiness and luxury should never be out of reach. Each piece of jewelry is meant to be worn and adorned in both the ordinary and extraordinary settings of your life. With a broad range of prices, every woman has the opportunity to sensibly indulge.