Margaret Kostowska has over 20 years of experience as a buyer in the high-end jewelry industry Margaret Kostowska as a diamond and gemstone buyer.

During those years Margaret worked with a prestigious fine jewelry house in New York City (one of the oldest jewelry manufacturers in the United States) where she purchased diamonds and gemstones used to create many special orders for such companies as Tiffany and Van Cleef & Arpels.

For years Margaret has attended international gem and jewelry shows where she has forged valuable connections with the world’s top diamond and colored stone dealers.

Margaret holds the title of Graduate Gemologist, the highest certification of the Gemological Institute of America (GIA)