PVD (Physical Vapor Deposition) is a process used to create a hard, durable surface coating on metal. It allows us to give a ring colors and surface properties that aren’t possible with the underlying material alone, while preserving the polish, contours and fine details of the original piece.
The process takes place inside a vacuum chamber. A source material is converted into vapor, plasma or energetic particles containing individual atoms and ions. Depending on the specific PVD process, electrical fields and plasma may be used to control and direct those particles toward the ring, where they condense and bond to its surface.
The result isn’t paint sitting on top of the ring. Properly applied PVD forms a tightly adhered engineered coating that becomes the new working surface of the piece, while the material underneath continues to provide its weight, strength and structure.
From Aerospace to Jewelry
PVD and related vacuum-deposition technologies have a long history in aerospace, manufacturing and precision engineering. NASA has researched, developed and used advanced vapor-deposition processes for applications where precisely controlled, durable coatings have to perform in demanding environments.
Those same qualities eventually made PVD a natural fit for watches and jewelry, where it can provide both decorative color and improved surface properties without obscuring the machining or detail of the piece.
Why PVD?
For jewelry, PVD offers an unusual combination of beauty and durability.
The process can produce rich, highly consistent finishes while retaining the crisp edges, polished surfaces, engraving and other details of the original ring. Many PVD compounds are also exceptionally hard and wear resistant—properties that made PVD valuable for industrial tools and components long before it became popular as a decorative finish.
On a King Ring, PVD allows us to introduce finishes such as black, yellow gold, rose gold and blue while retaining the weight, dimensions and character of the ring underneath.
It isn’t simply a different color of metal. It’s an engineered surface applied to it.
Is PVD Durable?
Very—but not indestructible.
PVD coatings are prized for their hardness, adhesion and resistance to wear. Those qualities generally make PVD considerably more durable than conventional decorative finishes.
A PVD-coated ring can still be scratched or damaged by sufficiently abrasive contact. Because the color is part of the surface coating rather than the underlying material, a deep scratch can eventually expose what’s beneath it.
PVD improves durability. It doesn’t repeal physics.
Why Doesn’t PVD Come in Every Color?
Because PVD isn’t paint.
The final color is determined by the materials used in the coating and by controlling the conditions under which it is deposited. Different materials and processes can produce gold, rose, bronze, gray, blue, black and other tones, but the available palette is constrained by the chemistry and physics involved.
That’s why PVD finishes are generally offered in a defined range of colors rather than every imaginable shade.
PVD on King Rings
We use PVD when it gives us something the underlying material can’t provide on its own: color and surface character without sacrificing the look and precision of the ring beneath it.
The machining is still there. The polished and brushed surfaces are still there. The weight is still there.
PVD simply gives us more ways to finish the job.
Why tungsten carbide?
