Established in 1988 in St. Thomas, Diamonds International began as a single store and has grown into the Caribbean's largest duty-free jeweler, with over 125 locations in major cruise ports. While fundamentally a shoreside giant, the company recently secured a major multi-year fleetwide partnership in 2025 with Oceania Cruises and Regent Seven Seas. Its current scope now includes operating upscale boutiques onboard these ultra-luxury ships, featuring their signature 90-facet "Crown of Light" diamond and introducing first-at-sea lifestyle brands like Alustre and Fair Harbor to the high-net-worth cruise demographic.