ダイヤモンドルースalso: ダイアモンドルースMeanings1nounloose diamondsWasei-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.
