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charming; fascinating; voluptuous
「艶」 has another reading with different meanings.
彼女の髪には艶があってとても綺麗に見える。
Her hair has luster and looks very beautiful.
この宝石は艶があって高級感を感じさせるね。
This gem has luster and gives a sense of luxury.
肌の艶を保つために保湿を心がけているんだ。
I try to moisturize to maintain skin luster.