An exhibitor intalls a magnificent natural pearl necklace at an exhibition arranged by Christie ' s auction house in Dubai , United Arab Emirates , 23 April 2008 . The necklace was given to famous Arab singer Umm Kulthum ( 1904 - 1975 ) by His Highness Sheikh Zayed Bin Sultan Al Nahyan , the late President of the UAE . The necklace is expected to fetch 50 - 76 , 000 euros when it is sold as part of the Contemporary Jewels and Watches sale in Dubai on 29 April 2008 . EPA / ALI HAIDER < 저작권자 ⓒ 2007 연 합 뉴 스 . 무단 전재 - 재 배포 금지 . >