As Kathy entered the fashion world, starting in some of New York’s hottest boutiques, she showed a knack for design and trend forecasting. She continued to craft her talents in Los Angeles and in 1999, Kathy began designing jewelry pieces of her own. Her first design, a pair of Icicle Earrings worn by Cameron Diaz, was featured in the movie, Vanilla Sky. Around the same time, Kathy launched her jewelry line under the name Kaviar Jewelry. 2003 saw the launch of the first retail boutique, Roseark, in Los Angeles, and in 2008, a larger Roseark opened.
Kathy has been honored by the Fashion Council International as a Design Rising Star award finalist. Her designs featured at the California Design Biennial at the Pasadena Museum of California Art in 2010. Kathy Rose was announced the winner of Bravo’s clothing design competition, Launch My Line. She was also an Accessories Editor at Foam Magazine.