Ocean Emerald, the first of four unusual but identical superyachts designed by architect Norman Foster, has been officially launched.

Ocean Emerald, the first of four unusual but identical superyachts designed by architect Norman Foster, has been officially launched. The 40m Signature Series yacht was built by Rodriguez Cantieri Navali at Sarzana in Italy for fractional ownership company YachtPlus.

Aluminium alloy was used for Ocean Emerald’s hull with composite for the superstructure, and it has accommodation for 12 guests and 7 crew. Up to eight owners will each pay from ?1,875,000 to gain flexible year-round use of the yacht, which will be located in the Mediterranean in summer and in the Caribbean in winter.