"Ocean Emerald, which launched last week in Italy and designed by the architect behind London's 'Gherkin', is part of a fleet of four identical boats.
The first eight buyers will be able to use the boat now, while the next eight will get their boat in November.
Members of the fractional scheme pay €1.85m for a one-eighth share of the boat, guaranteeing them 34 days on board. That includes 11 days in the Mediterranean in the summer, 11 days in the Caribbean in winter and two six-day cruises during the rest of the year. There is an annual service charge of €200,000."