What are some of the most extravagant and expensive wallpaper designs available in the market today?

Keep in mind that the availability of these designs and new releases may have changed since then. Here are a few notable examples:

1. De Gournay:
   • De Gournay is famous for its hand-painted wallpapers. These bespoke creations are often considered works of art, featuring intricate designs and meticulous craftsmanship. The use of luxurious materials contributes to their high cost.
2. Versace Home:
   • Versace is synonymous with luxury, and their home collection includes opulent wallpaper designs. These wallpapers often feature the brand’s iconic motifs, embodying a sense of glamour and sophistication.
3. Hermès:
   • Hermès, known for its high-end fashion and accessories, also offers exquisite wallpapers. These designs reflect the brand’s commitment to craftsmanship and timeless elegance, incorporating luxury materials and sophisticated patterns.
4. Fornasetti:
   • Fornasetti wallpapers are distinctive for their whimsical and surreal designs. The brand’s use of imaginative motifs and artistic flair makes these wallpapers stand out in terms of both style and price.
5. Zuber:
   • Zuber is renowned for its scenic wallpapers that showcase panoramic designs. Crafted using traditional woodblocks, Zuber wallpapers are considered pieces of art, with a timeless and exclusive appeal.
6. Phillip Jeffries – Juicy Jute Collection:
   • The Juicy Jute Collection by Phillip Jeffries combines natural fibers with luxurious design. These textured wallpapers feature rich colors and patterns, adding a touch of extravagance to contemporary interiors.
7. Cole & Son – Fornasetti II Collection:
   • Cole & Son collaborated with Fornasetti for a collection that includes extravagant wallpaper designs. Featuring intricate illustrations and bold patterns, these wallpapers are a luxurious addition to any space.
8. Elitis:
   • Elitis wallpapers are known for their avant-garde designs and innovative use of materials. From metallic accents to three-dimensional patterns, Elitis offers wallpapers that redefine luxury and sophistication.
9. Arte – Curiosa Collection:
   • Arte’s Curiosa Collection combines elegance with a touch of the surreal. These wallpapers feature intricate patterns and luxurious finishes, exemplifying the brand’s commitment to extraordinary wall coverings.

Keep in mind that the prices of these wallpapers can vary significantly, and they are often considered investment pieces for those seeking a truly luxurious and unique interior design. Additionally, new collections and designs may have been introduced since my last update, so it’s advisable to check with specific luxury wallpaper brands for the latest offerings.