Exploring the World's Most Expensive Islands: A Look at the Most Expensive Island in the World and Their Billionaire Owners

The ultra-wealthy have long been drawn to private island ownership as the ultimate symbol of exclusivity and luxury. Among the most expensive island properties ever purchased, these five acquisitions represent some of the planet’s most coveted tropical and temperate estates. Each tells a story of visionary investment, personal sanctuary creation, and in some cases, ambitious community development.

Lanai, Hawaii: Oracle’s Strategic $500 Million Island

When Oracle founder Larry Ellison acquired approximately 98% of Lanai’s 141-square-mile expanse, he did so with a development vision rather than personal retreat aspirations. The reported $500 million investment transformed this Hawaiian island into one of the most expensive island in the world by total value. What makes this acquisition particularly noteworthy is Ellison’s commitment to infrastructure enhancement and resident welfare, with over 3,000 people calling the island home.

The island boasts nearly 50 miles of pristine coastline and now operates multiple Four Seasons luxury resorts. These high-end properties provide visitors access to exceptional beaches and verdant landscapes without requiring personal connections to the billionaire owner. Lanai represents a unique model where private ownership intersects with public accessibility and community benefit.

Bonds Cay, Bahamas: A $16 Million Collaborative Caribbean Vision

This 700-acre Bahamian property showcases a different ownership model—collaborative acquisition. Shakira partnered with Pink Floyd’s Roger Waters and Spanish musician Alejandro Sanz to purchase the island for approximately $16 million. The trio envisioned transforming Bonds Cay into an eco-conscious luxury destination that would serve as an artists’ retreat.

Positioned 120 miles from Florida’s coastline, Bonds Cay features five distinct beaches and three salt-water lake systems. The immaculate white sand and natural landscape create an idyllic setting for the owners’ ambitious ecological development plans, demonstrating how private island investments often extend beyond personal use into broader creative and environmental purposes.

Île Gagnon: Quebec’s $25.5 Million French Norman Chateau Estate

Not all the world’s most expensive islands exist in tropical climates. Celine Dion’s Quebec property on the Rivière des Mille Îles exemplified temperate luxury, featuring a mansion styled after a French Norman chateau. A private gated bridge provided exclusive access, creating an fortress-like retreat aesthetic.

Despite initial ownership, Dion decided to part with the property in 2016, selling it for $25.5 million. The island’s architectural ambitions and gatekeeping infrastructure demonstrated how expensive island properties serve as blank canvases for billionaire customization and architectural expression.

Skorpios Island, Greece: The $150 Million Showstopper

When Russian billionaire Dmitry Rybolovlev’s daughter Ekaterina set her sights on Greece’s Skorpios Island alongside its neighboring islet Sparti, she ultimately succeeded where other high-profile buyers failed. The property had attracted covetous attention from Bill Gates, Giorgio Armani, and Madonna—all accustomed to acquiring whatever they desired.

The 74-acre island commanded a staggering $150 million price tag, making it arguably among the most expensive island acquisitions globally. Skorpios carries historical prestige as the site where shipping magnate Aristotle Onassis married Jacqueline Kennedy, adding cultural cachet to its natural beauty and exclusive positioning.

Cayo Norte, Puerto Rico: Google Co-founder’s $32 Million Tropical Paradise

Larry Page, Google’s co-founder, demonstrated an apparent appetite for island ownership by acquiring Cayo Norte in 2018 through an LLC entity called U.S. Virgin Island Properties. At $32 million, this purchase secured the largest privately-owned island within Puerto Rico’s jurisdiction.

Cayo Norte attracts investment through its glittering white-sand beaches, thriving coral reef ecosystems, and wildlife populations including endangered sea turtles. The property represents both a luxury personal asset and an environmental stewardship responsibility, exemplifying how contemporary island ownership increasingly incorporates conservation considerations.

The Global Trend of Billionaire Island Investment

These five acquisitions collectively illustrate how the world’s most expensive islands serve multiple purposes: personal sanctuaries, development vehicles, artistic retreats, and environmental stewardship platforms. From Ellison’s $500 million Hawaiian commitment to Rybolovlev’s Greek island triumph, these properties demonstrate that ultra-luxury real estate transcends traditional residential categories. For the ultra-wealthy, island ownership represents the ultimate convergence of privacy, prestige, and possibility.