Chromatophore Broche by Mayu Tsutsumi - Bizoux

Chromatophore Broche by Mayu Tsutsumi - Bizoux is a highly esteemed winner of the very prestigious 2026 A' Design Award in Zilver in Sieradenontwerp Competition Category.

ZilverSieraden· 2026

Chromatophore Broche

by Mayu Tsutsumi - Bizoux

Client: Bizoux

A' Design Award in Zilver Winner in Sieraden Category

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Verified Award Winner

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Colors

The Design

About Chromatophore Broche

Chromatophore verenigt de spontane schoonheid van natuurlijke edelstenen met precies vakmanschap. Vervaardigd in 18-karaats geelgoud, telt het 392 pavé-gezette stenen, waaronder zeldzame Alexandriet en Bekily Blue Garnet, sommige slechts 1,0 mm groot. Elke via CAD ontworpen zetting werd door vakmensen met exacte controle vastgezet. Zwart rhodium minimaliseert de aanwezigheid van metaal en versterkt de schittering, terwijl een scharnierende sluiting en dubbele pennen zorgen voor comfort en stabiliteit.

The Recognition

About the A' Design Award in Zilver

Chromatophore Broche is winnaar van de A' Design Award in Zilver, een buitengewoon prestigieuze erkenning die wordt toegekend aan topontwerpen die prachtig en indrukwekkend zijn. Winnaars in Zilver zijn enorm briljante en uiterst creatieve werken die de uitmuntende expertise, het talent en de scherpzinnigheid van hun ontwerpers illustreren. Chromatophore Broche wordt verwacht een prachtig paradepaardje te zijn dat opmerkelijk professioneel en diepgaand innovatief is. Dit ontwerp dat de A' Design Award in Zilver heeft gewonnen, is een hoogst opmerkelijke, bewonderde uitvinding die baat en de grenzen van kunst, wetenschap, ontwerp en technologie verlegt. Chromatophore Broche is een zeer benijde creatie die verlangens oproept, positieve gevoelens brengt en verbazing en verwondering doet ontvlammen.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: For Bizoux, color-change gemstones - those rare jewels that reveal two distinct hues - stand as the very emblem of our brand. We believe that these gems symbolize the celebration and expression of diversity, a value at the heart of our creations.

Thanks to our unparalleled sourcing capabilities, we have secured some of the world’s most exceptional color-change stones and transformed them into extraordinary jewelry.
At the pinnacle of this pursuit lies our high jewelry masterpiece: Chromatophore.
Dimensions & Packaging: Dimensions approx. 51.13 mm (H) x 41.70 mm (W) x 14.42 mm (D)
Tags: Brooch, Fine Jewelry, Alexandrite, Bekily Blue Garnet, Sapphire, Emerald, Solid Gold, Chameleon, Color Change
Production Technology: Forged in 18K yellow gold for strength and radiance, this piece holds 392 hand-selected gemstones in flawless pave. Stones as small as 1.0 mm are individually designed in 3D and set by a single artisan with precise care. Black rhodium plating minimizes metal, dissolving boundaries so only brilliance remains. Chromatophore transforms rare gems into a constellation where light itself becomes emotion.
Design Challenge: The pave setting, covering the entire form, required strict technical discipline. The chameleon’s organic contours demanded advanced 3D CAD, refined in 0.1 mm increments with prongs recalculated for structural optimization. Master setters then adjusted each seat, using stones of varied diameters to achieve organic irregularity. Every micro-adjustment - shaving, repositioning, fine-tuning - ensured a flawless surface, uniting measurable control with refined craftsmanship.
Research: The creation began with a study of the chameleon’s form, its expressions refined through sketches into a vision of high jewelry. Gemstones of varied sizes cover the surface, echoing the textures of its skin. Even the reverse, unseen in wear, bears forest-leaf motifs of its habitat. Each stone is set with precision, uniting nature’s mysterious elegance with the mastery of human craftsmanship.
Inspiration: The immeasurable beauty of natural gemstones, combined with the calculated precision of craftsmanship, defines our jewelry aesthetics. Born from this duality, Chromatophore takes its name from the chameleon’s pigment cells, showcasing color-change gems set with advanced micro pave techniques. Using exceptional materials - alexandrite, bekily blue garnet, and more - we refined complexity and precision to shape an organic, three-dimensional form that embodies the chameleon’s natural dynamism.
Project Duration: The creation of Chromatophore began in October 2022 at our Tokyo-Nihonbashi office. The initial design sketches and highly detailed technical drawings were conceived at the BIZOUX atelier, before being brought to life in the renowned jewelry workshops of Kofu, Yamanashi-Japan’s historic center of fine jewelry craftsmanship. The piece was completed in June 2023 and has since been exhibited at GINZA SIX, one of Tokyo’s most prestigious commercial landmarks.
Operation Flow: The clasp mechanism on the reverse side is precision-engineered for effortless opening and closing, allowing seamless wear. The brooch is structurally optimized with two pins, carefully positioned to ensure maximum stability. Each component is crafted with meticulous attention, providing a secure, stress-free, and technically flawless fit.
Patents: IMAGE CREDITS: DREAM FIELDS INC
Team Members: Designer: Mayu Tsutsumi
Photographer: Yasuhiro Matsumura
Image Credits: DREAM FIELDS INC