ダイヤモンドルース

noun

loose diamonds

Wasei-eigo term used in jewelry contexts to refer to diamonds sold individually, not set in jewelry.

wasei-eigo (Japanese-coined English), from diamond loose

• 宝ほう石せき店てんでダイヤモンドルースを購こう入にゅうした。

  I bought loose diamonds at a jewelry store.