Sophia Jewellery, Inc (SJI) is a chain of jewelry stores started in 1991 with one stall named Elegance. The following year, two stalls opened named Karat 1 and Karat 2. In the year 1993, the name Sophia Jewellery, Inc which mean Elegance was born. And, in1997 SJI opened it's biggest stand-alone store in Zamboanga City.