These stunning dresses are the work of Lebanese designer Najwa Al Rifa'ai for her label Dar Aseelah (دار أصيلة). Most Lebanese designers like Elie Saab, Abed Mahfouz and Zuhair Murad are known for their haute couture Western-style gowns, so it's a little unusual for one to focus on traditional Arab garments. Dar Aseelah use traditional embroidery methods, silver and even shells in their abayas/jalabiayas. You can read a short article about the brand in
Asharq Al-Awsat (sorry it's in Arabic only!). My favourite have to be the first two turquoise designs:
