Etymology
Advertisement

semiprecious (adj.)

also semi-precious, denoting gems considered less valuable than precious stones, 1818, from semi- + precious (adj.).

Advertisement
Advertisement
Definitions of semiprecious

semiprecious (adj.)
used of gemstones having less commercial value than precious stones;
such semiprecious stones as amethyst, garnet, jade, and tourmaline
From wordnet.princeton.edu