The most expensive yacht in the world as of 2025 is the History Supreme, valued at $4.8 billion. This yacht is notable for being adorned with 100,000 kilograms of solid gold and platinum, with luxurious features including a master suite wall made from dark meteoric stone and decorations from a shaved T-Rex bone. It is reportedly owned by Malaysian businessman Robert Kuok and stands out as an ultra-luxurious and unique vessel, although there is some debate about whether it may be a hoax since it hasn't been publicly seen in many years.

Other extremely expensive yachts include the Eclipse, valued at around $1.5 billion and known for its advanced security features and luxury amenities, and Azzam, valued at about $600 million but with a current market value over $800 million, which is the world's largest private yacht.