After a year-long delay, Russian oligarch Roman Abramovich finally took delivery of the world’s largest and most expensive yacht, the Eclipse.

The “gigayacht” measures anywhere from 533 ft. to 557 ft. (depending on reports), and is the world’s largest privately owned yacht.

The cost of the behemoth has also been variously reported as $500 million – $1 billion. It is the world’s most expensive private yacht either.

Belgian-based Emocean Yacht Design has unveiled a rendering of a 200-metre gigayacht which if completed would be the world’s largest yacht by far.

Roman Abramovich recently launched the 557-ft. Eclipse, the world’s largest and most expensive privately owned yacht at a cost of about $450 million.

Now renowned naval architect Donald Starkey is offering to top that feat with a 656-ft. behemoth called Everest (named after the world’s tallest peak).

Currently under construction in Fort Lauderdale, Florida, the Everest will be longer than two football fields

Russian oligarch, Roman Abramovich’s mega-yacht ‘Eclipse’ has finally made a preliminary launch at the Blohm & Voss shipyard in Hamburg, Germany where it was built secretly for more than two years.

Estimated to have cost around $500 million, the vessel is nearly 170 meters long.

It has room for 24 guests, with a crew of 70. It is 13,000 tonnes, and can achieve a top speed of 33 knots. Its cruising speed is 22 knots.

Monaco-based Wally Yachts has designed the ultimate in luxury yachts; the WallyIsland a 99 meter (325 feet) “gigayacht”. This super cool waterbaby can be fitted with pools, tennis courts, mini soccer fields, or the gardens and have space to house 40 crew members and 24 guests. A helipad and two 45-foot speedboats are deployed at the back.

Via newlaunches