154’ (46.94) Admiral STAR DIAMOND Now Asking $8,950,000

Posted December 3, 2025 in Brokerage & New Build

Northrop & Johnson is pleased to announce a $450,000 price reduction for the 154’ (46.94m) Admiral Marine STAR DIAMOND, now asking $8,950,000 and listed with Yacht Broker Carl Sputh. Following a comprehensive $9 million refit in 2024, this RINA-classed tri-deck motor yacht is turnkey and charter-capable.

Built in 1998 and fully revitalized in 2024, STAR DIAMOND pairs classic American craftsmanship with serious mechanical upgrades and a design built for global cruising. Her semi-displacement hull, Quantum Zero Speed stabilizers (four fins, upgraded in 2024), and cruising speed of 14 knots (max 18 knots) offer a smooth, efficient ride. Structural improvements to the bow and keel have brought her ride quality in line with a Westport, while her impressive 492 gross tons deliver expansive interior volume rarely found in this size range. Previously a successful charter yacht, STAR DIAMOND is positioned to offset annual costs through smart management or provide a spacious private haven for extended cruising.

The interior, designed by Donald Starkey, evokes a refined beach house aesthetic: light-filled, warm, and versatile. The main salon features updated ceiling panels and a layout that easily converts into a gym, spa, or media room. Forward, the formal dining area flexes between intimate and grand with convertible tables seating up to twelve guests. The refitted galley, featuring commercial-grade appliances, is supported by a generous serving pantry for seamless dining service.

STAR DIAMOND welcomes 10 guests in five staterooms, including a full-beam master with a custom king bed, private lounge, and his-and-hers bath with Jacuzzi tub. The guest layout is highly flexible, with convertible twins-to-kings and a sliding wall system that allows two staterooms to merge into a VIP full-beam suite.

Her exterior decks, styled by Lou Codega, rival those of much larger yachts. The sundeck is best-in-class, with twin bars, Jacuzzi, a barbecue, and shaded lounging zones, accessible via an interior staircase rarely seen at this size. The skylounge features a honey onyx bar, 80″ theater screen, and opens to a climate-controlled alfresco dining area for twelve. Aft, toys are smartly stored on deck hatches, preserving the sundeck for guest use at all times. Her Portuguese bridge offers a quiet retreat forward, while the swim platform and hydraulic transom door create an easy-access beach club experience.

She comes fully loaded with a 19’ (5.8m) AB tender with Yamaha 150hp, four WaveRunners, a 40-foot water slide, and a wide array of toys for family fun and charter appeal.

To arrange a viewing or learn more, please contact Carl Sputh. For media requests and photos of this yacht, contact N&J’s press team.

If you’re interested in buying or selling a yacht, contact the professional team of yacht brokers at Northrop & Johnson today. As a world-leading yacht brokerage, Northrop & Johnson offers access to thousands of luxury yachts for sale around the world, including private yachts not publicly advertised for sale. From yacht sales to new construction, contact our team of yacht brokers to get the results you need.


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