When Stone Meets Water: How the Caesarstone x GROHE SPA Collaboration is Shaping Wellness Design

A well-designed bathroom is a place for restoration, and intentional material choices play an essential role in the fashion and function of these important spaces. The Caesarstone x GROHE SPA collaboration sits at that intersection, as exemplified in recent design events across the globe.

A Sensory Experience: The Caesarstone x GROHE SPA Aqua Sanctuary

Caesarstone served as the official surface partner for GROHE SPA’s “Aqua Sanctuary” installation at Milan Design Week. The brand came together to create an immersive, multi-room environment exploring the concept of “Wellbeing through Water.” For architects and designers specifying surfaces for high-end bath and wellness projects, the experiential presentation was inspiring and informative for future specification opportunities.

GROHE SPA represents the premium tier of one of the world’s most recognized water technology brands. Their design team specifies surfaces the way architects do: with intent. When the GROHE SPA team selected Caesarstone’s 5100 Vanilla Noir as the primary surface for the Aqua Sanctuary, it was the result of a deliberate conversation that focused on the aesthetic style and performance of the material.

The Milan installation guided visitors through three interconnected sanctums that engaged the senses with light, sound, and materiality. Twenty-eight slabs of 5100 Vanilla Noir were fabricated for the experience, and these appeared throughout the space to anchor each area with a surface that absorbs and reflects light differently as the environment changes around it.

5100 Vanilla Noir: A Surface to Support Wellness in Design

5100 Vanilla Noir is a deep black quartz with bold golden-cream veining. The dramatic details offer unique visuals depending on proximity. Up close, the movement in the stone reads as organic and warm. From a distance, it’s striking in its sophistication—an unabashed design statement with real presence in a space..

In the context of a spa or wellness bathroom, this matters. Materials in immersive environments need to work with light at multiple times of day, hold up visually against premium fixtures, and communicate quality without fighting for attention. Vanilla Noir does all this.

As a quartz surface, it also brings the practical advantages that architects and designers rely on for wet environments: non-porous, stain-resistant, and consistent across slabs — something natural stone in the same aesthetic range cannot guarantee.

A Focus on Wellness in Bathroom Design

Spa-inspired residential bathrooms have moved from aspirational to mainstream in high-end residential and boutique commercial work. Clients increasingly seek elements seen in hospitality design, and they want the premium materials of a wellness retreat for their private baths.

What this means in practice:

• Surfaces that work across multiple planes — floor, wall, vanity, freestanding elements — with visual coherence
• Materials that hold up in wet environments without requiring high maintenance protocols
• A look that feels warm and organic, not clinical
• Surfaces that complement premium fixture brands rather than competing with them

The Aqua Sanctuary addresses all of these. The collaboration between Caesarstone and GROHE SPA is, in effect, a working proof of concept for this increasingly popular type of project.

Inspiration and Application for US Designers

Beyond Milan Design Week,  Caesarstone surfaces are part of the GROHE Fifth Avenue showroom in New York, one of the most visited design resources in the country for architects specifying premium bath environments. The material pairing that defines the Milan installation is one you can explore in person here in the states.

Caesarstone also participates alongside GROHE at domestic design events, including the Miami World Architecture Festival and ICFF. These events help expand the conversation about surface and water design for the US A&D community.

Caesarstone has spent more than 37 years innovating surfaces for the full range of residential and commercial applications: quartz, porcelain, and Caesarstone ICON™ advanced fusion surfaces made with approximately 85% recycled materials and crystalline silica-free*.

We give designers a multi-material, multi-application toolkit to answer a full range of surfacing specifications.

*Caesarstone ICON may contain traces of crystalline silica of up to 1%.