The World's Most Expensive Islands: Billionaire Acquisitions That Redefined Private Real Estate

When ultra-high-net-worth individuals decide to invest in the world’s most expensive islands, they’re not just purchasing vacation homes—they’re acquiring some of the planet’s most exclusive real estate assets. From tech titans to music legends, the past decade has seen remarkable island acquisitions that showcase how the global elite deploy their wealth. These most expensive islands reveal fascinating insights into luxury markets, strategic investments, and the evolving landscape of ultra-premium real estate.

Lanai, Hawaii — A $500M Transformation

Oracle co-founder Larry Ellison’s acquisition of 98% of Lanai represents one of the most ambitious private island projects in modern history. While the purchase price hovered around $500 million, Ellison’s vision extended far beyond personal indulgence. His strategy centered on comprehensive island development, upgrading infrastructure, and improving living conditions for the island’s 3,000+ residents. This approach transformed Lanai into what many consider the largest privately held island in the United States, boasting nearly 50 miles of pristine coastline.

The island now features multiple Four Seasons luxury resorts, making it accessible to visitors seeking world-class amenities amid breathtaking natural landscapes. Unlike purely private acquisitions, Ellison’s investment demonstrates how billionaires can shape entire island economies while maintaining exclusive access.

Bonds Cay, Bahamas — The Artist Collective Island

In a unique collaboration, international superstars—including pop sensation Shakira, legendary Pink Floyd guitarist Roger Waters, and Spanish singer Alejandro Sanz—pooled resources to purchase this 700-acre Bahamian gem for $16 million. Located 120 miles off Florida’s east coast, Bonds Cay showcases five pristine beaches, immaculate white sands, and three natural salt pond lakes.

The trio’s acquisition reflects an innovative approach to most expensive islands: transforming the location into an eco-conscious luxury retreat and creative sanctuary for artists. This collaborative model contrasts sharply with traditional solo billionaire acquisitions, offering a glimpse into how creative professionals view high-value island investments.

Île Gagnon, Quebec — The Norman Chateau Island

Celine Dion’s private island on Québec’s Rivière des Mille Îles exemplifies a different category of most expensive islands—those valued not for tropical climates but for architectural splendor and privacy. The Canadian icon constructed a stunning mansion styled after French Norman chateaux, accessible exclusively via a private gated bridge that enhanced the property’s fairy-tale aesthetics.

Despite its magnificence, Dion ultimately decided to liquidate this $25.5 million asset in 2016, demonstrating how even legendary entertainers reassess their ultra-luxury real estate portfolios. The sale marked a significant transaction in the high-end island market, proving that even the most exclusive properties change hands.

Skorpios Island, Greece — The $150M Historical Powerhouse

Despite aggressive competition from household names like Bill Gates, Giorgio Armani, and Madonna, Russian billionaire Dmitry Rybolovlev’s daughter, Ekaterina Rybolovlev, emerged victorious in acquiring this historically significant Greek island for an eye-popping $150 million. The 74-acre Skorpios and its neighboring islet Sparti represent some of the world’s most expensive islands, commanding premium valuations due to their legendary past.

The island gained immortal fame as the location where shipping magnate Aristotle Onassis married former U.S. First Lady Jackie Kennedy—a historical pedigree that elevated its cache in the ultra-luxury market. This acquisition demonstrates how historical significance amplifies island valuations and attracts the world’s most ambitious wealth accumulators.

Cayo Norte, Puerto Rico — Silicon Valley’s Island Vision

Google co-founder Larry Page added to his portfolio of most expensive islands by acquiring Cayo Norte through an LLC called U.S. Virgin Island Properties in 2018, paying $32 million for the largest privately-owned island in Puerto Rico. This tropical sanctuary showcases glittering white-sand beaches, thriving coral reef ecosystems, and wildlife habitats home to endangered sea turtles.

Page’s acquisition exemplifies how tech entrepreneurs view island investments as long-term strategic assets, combining environmental stewardship with exclusive ownership. The property’s natural biodiversity and pristine coastline position it as one of the Caribbean’s premier private acquisitions.

The Evolving Landscape of Ultra-Premium Island Investment

These five acquisitions showcase the diverse motivations driving billionaire investments in the world’s most expensive islands. Whether pursuing personal paradise, creative collaboration, architectural grandeur, historical significance, or environmental stewardship, ultra-high-net-worth individuals continue reshaping the island real estate market. As global wealth concentrates among fewer individuals, competition for these exclusive assets intensifies, ensuring that most expensive islands remain among the most coveted—and expensive—properties on Earth.