Gold plated vs gold filled: gold plating is a thin electroplated layer on a base metal, while gold filled is a much thicker layer of gold alloy bonded to a base metal by heat and pressure. Rhodium vs silver plating: rhodium is a hard, tarnish-resistant white metal, and silver is softer and tarnishes. Plating vs PVD coating: PVD is a vacuum process that deposits a very hard thin film and is common on stainless steel.
No option is best for everything. The right choice depends on the base metal, how the piece is worn and what you can claim on the label.
Gold plated vs gold filled
Gold plating deposits gold on the surface using an electric current. The layer is thin, measured in fractions of a micron to a few microns, and it wears with friction and sweat. Thickness varies a lot between suppliers. See gold plating microns explained.
Gold filled is a different product. A layer of gold alloy is bonded to a base such as brass, and the gold layer is far thicker than plating. Because the term is regulated in some markets, you should not use it unless the product meets the definition for your market, such as the one in the US FTC guides. See FTC Jewelry Guides and plating disclosure.
Imitation jewellery from Rajkot is mostly plated rather than filled. The related terms are explained in flash plating, gold plating and vermeil.
Rhodium vs silver plating
Rhodium is a platinum-group metal with a bright white colour. It is hard and resists tarnish, so it is often used as a final layer over silver or white-coloured base layers. It is more expensive to apply than silver. See rhodium plating explained.
Silver plating gives a similar white look at lower cost, but silver reacts with sulphur in air and skin and tarnishes to grey or black. It needs a protective coating and care. Pieces that touch skin all day usually do better with rhodium.
Plating vs PVD coating
PVD, or physical vapour deposition, deposits a thin film in a vacuum chamber. Common films give gold, rose gold, black or gunmetal colours. The film is very hard and bonds well, especially to stainless steel, so it resists scratching and tarnish better than most electroplating.
PVD needs suitable equipment and base metals, and it is less common in small workshops than electroplating. Ask whether the supplier does it in-house or sends it out, and ask for test evidence. See stainless steel jewellery from Rajkot.
How to choose and specify
Match the coating to the use. Rings, bangles and anything worn daily need the hardest option your price allows. Occasional-wear pieces can use standard plating with a protective coating.
Write the coating, thickness and test method into your specification, and check samples with a plating thickness test. Cost depends on the metal, the thickness and the process, and real figures come from a quote for your designs.
To compare options on your own range, book a free sourcing review.
Ask for thickness in microns, not in vague terms such as 'heavy plating', and name the base metal and any barrier layer under the finish. Two pieces that look the same on day one can wear very differently depending on those layers. Test results, not descriptions, should decide which supplier you use.