The following research is based on a new Costume Jewelry Brands that has emerged in a much saturated jewelery market and is stirring up the market. In this research we took factors that made consumers recognize the brand in the Costume Jewelery market from other materials and developed our own measures for its personality of Costume Jewelry Brand and sought to identify the distinguishing factors of the brands. It can be used as a base material to analyse which brands in the Costume Jewelery Brand has future potential to grow. Final Results shown from research of Costume Jewelery Brand Personality of 7 demensions in 27 items are shown as the following. First is artistic and unique, this shows the best in me, latest fashion, urbane, interesting of 6 items was grouped for dimension of Sensibility. Second is upper class, original design, strong appeal, elegant, intelligence, of 5 items grouped for a dimension of Nobility. Third is surefire guarantee, trust in, elaborate of 3 items grouped for a dimension of Faith. Fourth is cute, simplistic, smooth, humorous of 4 items grouped for a dimension of Pleasure, Fifth is leadership, suitable for my fashion, successful of 3 items grouped for a dimension of Capability. Sixth factor is spritsed, realistic, cheerful of 3 items grouped for a dimension of Liveliness. And Seventh factor is feminine, charming, sophisticated feeling of 3 items grouped for a dimension of Beauty. From the above dimentions, ‘Faith’ and ‘Beauty’ from Aaker (1997) was found in many other research which related to ‘Sincerity’ and ‘Sophistication’, Pleasure is including the many of local researchers of its Korean values.