Paige Dellavalle co-founded jewelry line Stella Valle with her sister Ashley Jung in 2009. They were a hit at small-scale trunk shows, but they needed funding to expand. 

The sisters presented their business to ABC's Shark Tank and caught fresh funding from Mark Cuban and Lori Greiner. Dellavalle says they owe it all to mastering the art of the pitch.

In this video, Dellavalle discusses applying to the hit ABC show and how the art of storytelling meant sink or swim in the Shark Tank.

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