Ceratonia siliqua harubh. "Ceratonia siliqua", the scientific name of the carob tree, derives from the Greek "kerátiοn" κεράτιον 'fruit of the carob (from "keras" κέρας 'horn'), and Latin "siliqua" 'pod, carob'. The unit "carat", used for weighing precious metal and stones, also comes from κεράτιον, as alluding to an ancient practice of weighing gold and gemstones against the seeds of the carob tree by people in the Middle East. The system was eventually standardized, and one carat was fixed at 0.2 grams. In late Roman times, the pure gold coin known as the "solidus" weighed 24 carat seeds (about 4.5 grams). As
Eight Carat Eight Carat Eight Carat (GB) (1975–2000) was a British-bred Thoroughbred broodmare. in Australasia. She produced five individual Group One winners, including Octagonal, Mouawad, Kaapstad, Diamond Lover and (Our) Marquise who had 28 stakes wins between them. Eight Carat was a black or brown mare bred in Britain. She was sired by the Eclipse Stakes winner Pieces of Eight out of Klairessa. Klairessa had little success as a racehorse, but was a sister to both the King's Stand Stakes winner D'Urberville and the mare Lora who produced the 1000 Guineas winner On the House. In addition to Eight Carat, Klairessa also