rhine·stone
noun/ˈraɪnstəʊn/
/ˈraɪnstəʊn/
- a clear stone that is intended to look like a diamond, used in cheap jewellery
莱茵石（用于仿钻石首饰） Word Originlate 19th cent.: translating French caillou du Rhin, literally ‘pebble of the Rhine’.