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Tiffany & Co. dives deeper into its ongoing exploration of the sea with the latest chapter of Blue Book 2025: Sea of Wonder. First introduced in 1845, the Blue Book is the House’s annual high jewellery collection, which is an evolving showcase of its most expressive designs and technical artistry. This summer chapter, unveiled at an intimate presentation in Hong Kong earlier this summer, continues the ocean-inspired narrative under the creative direction of Nathalie Verdeille, Chief Artistic Officer of Jewellery and High Jewellery.
This season focuses on two marine themes, the seahorse and the sea turtle. Both creatures, drawn from Tiffany’s archive, are reinterpreted in ways that lean more abstract than literal, with a spotlight on movement and texture.
The Seahorse chapter builds on Jean Schlumberger’s iconic 1968 brooches, adding fresh energy through expressive gemstone pairings. Unenhanced purple sapphires, moonstones, and blue sapphires come together in a standout necklace that took nearly 1,600 hours to complete.
The creation is cleverly designed to be worn three ways: as the sapphire and moonstone necklace, with or without the moonstone strand, or as a standalone moonstone strand.
The Sea Turtle chapter goes back even further, pulling from brooch designs in Blue Book 1961. The new take captures the quiet strength of the turtle with sculptural shells rendered in aquamarine, turquoise and diamond. The colour palettes echo shallow tides and deeper currents.
Since 1845, the Blue Book has marked Tiffany’s most experimental output. This year’s Sea of Wonder doesn’t chase marine realism. Instead, it leans into fantasy, where light bends, shapes blur, and gemstones evoke the bioluminescence of deep-sea creatures.
What’s interesting about this summer’s release is how it stays rooted in Schlumberger’s legacy without resorting to replication. They’re reinterpretations using the sea not as motif, but as a source of movement, abstraction and surreal beauty that the House is long known for.
High jewellery can often feel caught between nostalgia and trend, but Sea of Wonder manages to step sideways. The collection feels more like an ecosystem than a showcase. Each piece connects to the next, floating in a world that’s both imagined and precise.
