Jagersfontein Mine /ˌjeɪɡərzˈfɒnteɪn/ is an abandoned open-pit mine in South Africa located close to the town of Jagersfontein and approximately 68 miles (109 km) south-west of Bloemfontein. Since it was first established in 1870, two of the ten biggest diamonds ever discovered, the Excelsior and the Reitz (now called the Jubilee), were mined from Jagersfontein. The term "Jagers" has since been coined to denote the distinctive faint bluish tint of the gems from this mine.