AMVI Cuff Materials — Sterling Silver, Black PVD, Green Sapphire, Matte Surface — Atelier CPII
Every material in the AMVI Cuff was chosen for structural and visual logic, not convention. Sterling silver for its working properties. Black PVD for its industrial precedent. Green sapphire for its geometric relationship to the grille. Matte surface because it reads as machined, not decorated.
Sterling Silver
Black PVD
Green Sapphire
Matte Surface
Silver
PVD
Sapphire
Surface
Sterling
Silver
Sterling silver is the structural foundation of the AMVI Cuff. At 92.5% pure silver, it is the most workable precious metal at this weight class — responsive to the precise forming required to achieve the cuff's convex band profile and grille architecture without compromise.
The choice of silver over gold is a material logic decision. Silver takes a matte PVD surface more uniformly than gold. Its cooler tone reads closer to machined steel. The object is designed to look like it came from an industrial process, not a jeweller's bench.
Black
PVD
Physical Vapour Deposition is a vacuum coating process used on surgical instruments, aerospace components, and the movement parts of precision Swiss watches. It is not a jewellery finish. That is the point.
In PVD, the coating material is vaporised under vacuum and deposited atom by atom onto the base metal. The result is a surface harder than the substrate beneath it — more resistant to wear, scratching, and UV degradation than any plating process. It reads as a machined coating, not an applied colour.
Green
Sapphire
Sapphire is the second hardest material on earth after diamond. That hardness is not incidental — it means the stone holds its edge, its polish, and its colour over decades of contact wear without degradation.
The green is not a treatment or a coating. It is a property of the crystal itself, produced by trace elements present during formation. Depending on the light, it reads closer to the brand's architectural teal than to any conventional jewel tone. It was set at the centre of the grille because the geometry required a terminus. The stone is that terminus.
Matte
Surface
The matte ground is prepared before the PVD is deposited. It is a condition of the object, not an afterthought applied on top. A surface prepared this way diffuses light evenly in every direction. No glare, no hot spots, no angle at which the object performs better than another.
Under a desk lamp or in direct sun, the cuff reads the same. That consistency is what makes it genuinely all-day wearable. It does not demand controlled light to look correct. The form is always visible. The surface never competes with it.
