Established in 1979 by Joe Costello, Costello Jewelry Company has created a name for themselves as one of the top bridal and fine fashion jewelry retailers in the greater Chicago area. With two beautiful showrooms, located in Naperville and Glen Ellyn, Illinois, Costello Jewelry Company is the place to find top-quality engagement rings, wedding bands, loose diamonds, fashion jewelry, and luxury grade timepieces from some of today's most popular designer brands.