ルース

noun

loose stone; unset jewel

Jewelry term for a gemstone that is not mounted in a setting. Used in trade and collecting contexts.

See also: 裸石

• このルースは、後あとでリングに仕し立たてる予よ定ていです。

  I plan to have this loose stone set into a ring later.

• 宝ほう石せき店てんでいくつかのルースを見みせてもらった。

  I was shown several loose stones at the jewelry store.