Oil-rich gulf emirate Dubai on Wednesday unveiled the world’s most expensive abaya (gown), valued at $16 million. The gown, which is adorned by a flawless red diamond, was designed by British clothing designer Debbie Wingham. According to Wingham\'s website, the abaya features a total of 2000 precious stones, including 50 flawless two-carat white diamonds, 50 flawless two-carat black diamonds, the beautiful red diamond and 1899 pointer diamonds. The bejewelled garment was made with over 200,000 stitches, all of which were hand-stitched with 14-carat white gold thread. ahram