10. Dilbar: The Dilbar is 110 meters long and is owned by Alisher Usmanov, founder of Metalloinvest, investor and philanthropist. He named the ship after his mother. According to Forbes, he has a net worth of $13.6 billion. In fact, he used to be the richest person born in Russia. 9. Pelorus: The Pelorus spans 115 meters and is owned by American David Geffen, the founder of DreamWorks SKG, Asylum Records, Geffen Records and DGC Records. According to Forbes, he is worth an approximate $6.9 billion. 8. Al Said: The owner of this 155-meter long, steel yacht is Qaboos bin Said, the Sultan of Oman and its dependencies. According to the Business Insider, he is worth approximately $1.1 billion. It can fit 70 passengers and 154 crewmembers. The yacht features a helipad, a cinema, and even a concert hall that can fit a 50-strong orchestra. 7. Dubai: The Dubai is 162 meters long and was built in 2006 by Platinum Yachts. It can accommodate a total of 115 people. The yacht features numerous dining areas, saloons, guest and VIP suites, two heli-observations rooms and eight decks. It used to be the largest privately owned superyacht, however that title now belongs to the Eclipse (161.7 meters). Dubai is owned by Mohammed bin Rashid Al Maktoum, the Vice President and Prime Minister of the United Arab Emirates 6. Radiant: The Radiant, 110 meters long, was initially built for Boris Berezovsky, a Russian oligarch. However, it was eventually sold to Abdulla Al Futtaim, an auto-dealer and investor (he owns Al Futtaim Group which is the exclusive distributor of Toyota and Honda vehicles in the United Arab Emirates). According to Forbes he is worth an approximate $3.2 billion. 5. Serene: The Serene is 134 meters long and is owned by Russian founder of the SPI Group, Yuri Scheffler, who is worth an estimated $800 million. Among the yacht’s features are an “underwater viewing room,” an indoor climbing wall, a children’s playroom, and enough cabins to accommodate 24 guests as well as 52 crew members. 4. A: It is owned by Russian billionaire Andrey Melnichenko, an industrialist with businesses in the fields of coal mining and fertilizers, serving as the chairman of the Board of Directors for Eurochem. According to Business Insider, he is worth approximately $11.4 billion. 3. Topaz: This 147 meter long luxury yacht was custom-built for and owned by Mansour bin Zayed, the Deputy Prime Minister of the United Arab Emirates. He is worth an estimated $20 billion. The yacht is the work of British designer Tim Heywood; it took four years to complete and finally set sail in May 2012. 2. Azzam: This massive 180 meter long vessel is owned by the president of the United Arab Emirates, emir of Abu Dhabi, and commander of the Union Defense Force, Khalifa bin Zayed al Nahyan. The Business Insider estimates that Nahyan is worth $18 billion. The yacht itself was designed by Nauta Yachts, built by the German shipyard Lurssen, and was set out to see in 2013. 1. Eclipse: The world’s most expensive luxury yacht is owned by Russian politician, businessman and investor, Roman Abromovich. According to the Business Insider, his overall estimated net worth is $12.8 billion. The yacht is 163 meters long, 22 meters wide, and weighs an estimated 13, 500GT. IMAGE SOURCE: "GOOGLE SEARCH" SOURCE: http://www.therichest.com/luxury/yachts-luxury/the-10-most-expensive-luxury-yachts-in-the-world/