The invention relates an optical glass which can be obtained in a much cheaper way. The optical glass has a refraction rate (nd) and an abbe number (vd) which are within a required range. The optical glass has a higher stability. The optical glass contains the following components calculated by mol % of an oxide reference: 25.0 % to 70.0 % inclusive of B2O3, 3.0 % to 20.0 % inclusive of Ln2O3 (in a formula, Ln refers to more than one selected from the group of La, Gd, Y, Yb), and less than 5.0 % of Ta2O5. The refraction rate (nd) ranges between 1.60 and 1.80 inclusive, and the abbe number (vd) ranges between 40 and 60 inclusive.