All that Glitters – a comparison between goldplating and gold PVD for jewellery

A comparison between Goldplating and Gold PVD for jewellery.

How to make Gold

If you are a manufacturer of jewellery, there are several different options available to enable you to achieve a gold look for your products.

If you are producing rings, chains or even watches the two of the most common ways to get that beautiful, iconic lustre that radiates from gold is to use the traditional gold plating method which comes with attendant environmental problems, or you can use the much more modern and environmentally friendly PVD coating process.

PVD does not use cyanide in any of its process, whereas most traditional gold plating does.

Watering can cufflinks in 22carat gold plate by Alex Monroe

Watering can cufflinks in 22carat gold plate by Alex Monroe

Gold plating vs Gold PVD

We are often asked by customers to explain the difference between a gold color PVD coating and the more traditional gold plating methods.

PVD is a vacuum coating process that will produce a beautiful decorative and a very functional finish on the item being coated. PVD utilizes a titanium nitride that provides an extremely durable and a tough wearing coating. PVD coatings possess a far higher resistance to wear than traditional gold plating. It is a fact that the PVD coating will stay on the product longer than traditional gold plating.

Traditional gold plating is the process of laying a microscopically thin layer of real gold onto the base metal used to make the actual product. This base material can be silver, nickel, copper, brass or stainless steel. The use of silver as the base metal, when coated with gold, produces Gilt Silver. Gold plating bonds better with silver and titanium.

Antique Gold-plated watch sold via Sally Turner Antiques

Antique Gold-plated watch sold via Sally Turner Antiques

Both plating methods give the finished product the look and feel of a solid gold product. Neither method adds any intrinsic value to the piece. Secondhand gold plated jewellery does not have a melt value. The melt value is the scrap value of the real gold gathered when a product is melted down. Traditional gold plating only deposits trace levels of gold onto the product. An ounce of 9 karat gold will plate tens of thousands of rings.

Silver daisy necklace with goldplated centre by Alex Monroe

Silver daisy necklace with goldplated centre by Alex Monroe

Advantages and disadvantages

The main advantage of conventional gold-plating is that it gives the product the exact look of solid gold.
The main disadvantage of traditional gold plating is that it offers extremely low durability and is very easily scratched, it will also start to tarnish within 12 to 18 months.
Some of the main advantages offered by using gold colored PVD coating,

  1. Very high levels of durability.
  2. PVD provides better corrosion resistance against sweat, chlorine etc.
  3. If the PVD jewellery gets dirty, you can stick it in the dishwasher without any issue.
  4. Different shades of the gold color can be produced.
  5. Gold PVD coatings can be up to ten times thicker than conventional gold plating.
all-that-glitters-a-comparison-between-goldplating-and-gold-pvd-for-jewellery_04

Commercial drivers

Choosing between gold PVD coating and gold plating comes down mainly to the manufacturer's production budget and the end user the product will be aimed at. Lower end including mass produced products will generally be gold-plated, higher-end products will use PVD.

Stainless steel Gold PVD bicycle chain bracelet from Istana

Stainless steel Gold PVD bicycle chain bracelet from Istana

Because of its hygienic qualities and durability PVD is being favoured by the manufacturers of Body Jewellery ie the decorative items worn in body piercings. One seller has exploited the general reaction in its marketing by calling itself Ouch! Body Jewellery. The products range from ear studs, belly bars to nipple rings. As they say .. Ouch!

By Richard Storer-Adam
Managing Director of Double Stone Steel Ltd.

As chemical elements metals make up twenty-five per cent of the Earth’s crust and have been since Copper was first used 11,000 years ago.

The process of anodization and its early applications in aviation through to modern day consumer electronics - Double Stone Steel

The process of anodization and its early applications in aviation through to modern day consumer electronics

Richard Storer-Adam explains how metals are altered through anodizing and the anti-corrosive benefits and coloring options this process provides to product manufacturers.

The applications of Cor-Ten steel - from its beginnings in the US railroad industry to the worlds of art and architecture - Double Stone Steel

The applications of Cor-Ten steel - from its beginnings in the US railroad industry to the worlds of art and architecture

Richard Storer-Adam runs through how this weathering steel alloy quickly moved beyond transport uses to give a distinct, rusted look to some iconic buildings and sculptures.

Nickel (Ni)  – part of a series on metals commonly alloyed with stainless steel to form varying grades of material. - Double Stone Steel

Nickel (Ni) – part of a series on metals commonly alloyed with stainless steel to form varying grades of material.

Richard Storer-Adam looks into the origins of nickel, the part it plays in the composition of the planet and the industrial uses that make it a valuable metal alloy.

Chromium (Cr) – The discovery of chromium, its origins and wide-ranging industrial and aesthetic applications - Double Stone Steel

Chromium (Cr) – The discovery of chromium, its origins and wide-ranging industrial and aesthetic applications

Richard Storer-Adam continues a series on metals commonly alloyed with stainless steel to form varying grades of material.

Richard Storer-Adam is Managing Director of Double Stone Steel Ltd.

Titanium (Ti) – a brief history of the origins and commercial applications of titanium - Double Stone Steel

Titanium (Ti) – a brief history of the origins and commercial applications of titanium

Richard Storer-Adam begins a series on metals commonly alloyed with stainless steel to form varying grades of material.

The Acid Etching process on stainless steel and other metals. - Double Stone Steel

The Acid Etching process on stainless steel and other metals.

An explanation of the truly ancient art of engraving, etching and intaglios on copper, mild steel, aluminium, brass and stainless steel by Richard Storer-Adam.

An exploration of metals, elements and alloys. We look at how these naturally occur on Earth and how they are treated through processes of colouring, plating, etching, anodising and Physical Vapor Deposition to become materials and products used in industry, construction, art, decoration and jewellery.

The process of anodization and its early applications in aviation through to modern day consumer electronics - Double Stone Steel

The process of anodization and its early applications in aviation through to modern day consumer electronics

Richard Storer-Adam explains how metals are altered through anodizing and the anti-corrosive benefits and coloring options this process provides to product manufacturers.

The applications of Cor-Ten steel - from its beginnings in the US railroad industry to the worlds of art and architecture - Double Stone Steel

The applications of Cor-Ten steel - from its beginnings in the US railroad industry to the worlds of art and architecture

Richard Storer-Adam runs through how this weathering steel alloy quickly moved beyond transport uses to give a distinct, rusted look to some iconic buildings and sculptures.

Nitrogen (N) - part of a series on gases used during the physical vapour deposition (PVD) process - an innovative method for improving the performance of stainless steel - Double Stone Steel

Nitrogen (N) - part of a series on gases used during the physical vapour deposition (PVD) process - an innovative method for improving the performance of stainless steel

Richard Storer-Adam investigates the paradoxical role nitrogen plays in both saving and destroying life as a critical element in the manufacture of explosives, agri-fertilisers and airbags.

Oxygen (O) - part of a series on gases used during the physical vapour deposition (PVD) process - an innovative method for improving the performance of stainless steel - Double Stone Steel

Oxygen (O) - part of a series on gases used during the physical vapour deposition (PVD) process - an innovative method for improving the performance of stainless steel

Richard Storer-Adam explores the controversial discovery of oxygen, its importance to the human body and how it’s reactivity can be a vital component of metal manufacture.

Nickel (Ni)  – part of a series on metals commonly alloyed with stainless steel to form varying grades of material. - Double Stone Steel

Nickel (Ni) – part of a series on metals commonly alloyed with stainless steel to form varying grades of material.

Richard Storer-Adam looks into the origins of nickel, the part it plays in the composition of the planet and the industrial uses that make it a valuable metal alloy.

Chromium (Cr) – The discovery of chromium, its origins and wide-ranging industrial and aesthetic applications - Double Stone Steel

Chromium (Cr) – The discovery of chromium, its origins and wide-ranging industrial and aesthetic applications

Richard Storer-Adam continues a series on metals commonly alloyed with stainless steel to form varying grades of material.

Richard Storer-Adam is Managing Director of Double Stone Steel Ltd.