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"Mercy" actress Michelle Trachtenberg is continuing her foray into accessories design -- with a line of costume jewelry.

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The 24-year-old star is teaming up with luxury fashion brand Coach for the designs, under the brand's Poppy line.

Trachtenberg's line, which hits stores next spring, will have a "tough-girl meets sugary-sweet vibe", according to Women's Wear Daily.

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The Coach collaboration is Trachtenberg's second endeavour as a jewelry designer. In 2006 she launched Bella Veritas - which features one-of-a-kind pieces made with semi-precious stones.

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