玉制的耳饰,多呈圆环形而有缺口。因「玦」与「决」同音,故古人常以玉玦寓决绝之意。 《史记.卷七.项羽本纪》:「范增数目项王,举所佩玉玦以示之者三,项王默然不应。」
英语 penannular jade pendant (often used as a symbol of separation or resolution, for homophony reasons)