The new vessel replicates the design of the original Rainbow. Its design and naval architecture are by Dykstra & Partners. The interior of the yacht incorporates a 1930s-styled décor. The super-yacht has a capacity to house a maximum of eight guests in its three cabins including a master cabin, a double and a twin plus two Pullman berths. It also possesses separate accommodation for eight crew members.

Rainbow is constructed in aluminum with its superstructure sporting wooden-cladded deckhouse. The vessel is also the first J-class yacht to be equipped with a complete hybrid propulsion and power system.

The vessel has already been delivered to its owner.