A priceless treasure; an object of immense value.
这件传世的青花瓷器，工艺精湛，色泽温润，实乃连城之珍，令所有鉴赏家都赞叹不已。
This heirloom blue-and-white porcelain, with its exquisite craftsmanship and mellow color, is truly a priceless treasure, admired by all connoisseurs.
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