浑金璞玉

a rough diamond

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a rough diamond

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浑金璞玉

hún jīn pǔ yù

（比喻天然美质未加修饰） unrefined gold and unpolished jade -- an unadorned beauty; jade and gold in natural state; unchiselled (uncut; uncarved) jade and unsmelted gold; a diamond in the rough (a rough diamond); one who has not been spoiled; a beautiful untutored talent; completely natural; pure-minded; simple-minded （亦作“璞玉浑金）