Solid gold vs gold-filled vs gold-plated piercing jewellery: what's the difference?

The word "gold" appears on a great deal of piercing jewellery that contains very little of it. Gold-plated, gold-filled, PVD-coated, and gold-tone are all terms applied to products where gold is present as a surface treatment rather than a material — in some cases a surface treatment measured in microns. Understanding what these terms actually mean is essential before placing any piece inside a piercing, healed or otherwise.

The three types defined clearly

There are three meaningfully distinct categories of gold jewellery, and they are not interchangeable:

Solid gold is gold throughout. A solid 14k gold piece is 58.3% pure gold by mass, with the remainder composed of alloy metals (typically silver, copper, and zinc, in proportions that determine the colour). An 18k piece is 75% pure gold. Every molecule of the piece — core, surface, and everything between — is the same material. There is no base metal beneath, no coating to wear through.

Gold-filled describes a piece with a substantial layer of gold bonded mechanically to a base metal core under heat and pressure. By US legal definition, a gold-filled piece must contain at least 1/20 (5%) of its total weight in gold. The gold layer is thick relative to plating — typically 50–100 microns — and the bond is more durable than electroplating. The base metal core, however, is present throughout the piece.

Gold-plated (and its variant, PVD or physical vapour deposition coating) describes a thin layer of gold applied to the surface of a base metal piece. Traditional electroplating deposits a layer that is typically 0.5–2.5 microns thick — a small fraction of the thickness of a human hair. PVD produces a harder coating, typically 2–5 microns, and is marketed as more durable. In both cases, the base metal beneath the coating is the substance of the piece.

Why gold-plated and PVD are not suitable for piercings

Particularly in unhealed tissue, the distinction between solid gold and plated gold has direct health consequences. A plated piece placed in a fresh piercing presents the following problems:

• The coating wears. Body chemistry — moisture, sebum, pH variation — degrades gold plating faster than normal wear. In a piercing, where the piece is in continuous contact with tissue and fluid, this degradation is accelerated. A plated piece that looked gold at the time of piercing may be exposing base metal within weeks or months.
• The base metal is exposed to the wound. Beneath most gold plating is brass, copper, or a low-grade steel alloy. These materials are not appropriate for contact with healing tissue. Brass contains zinc and copper, both of which can cause localised reactions. Low-grade steel commonly contains nickel, a major allergen.
• PVD is still a coating on a base metal. The marketing of PVD as a premium alternative to standard plating is common. The hardness and durability of the coating are genuinely improved relative to electroplating. But the base metal is still present beneath it, the coating still wears over time, and "high-quality PVD" is not a material standard with any independent verification in the piercing context.

The scenario that results from plated jewellery in a healing piercing is one we see regularly at Platinum Point from clients referred from other studios: a piercing that seemed to be healing, then began reacting without obvious cause. In many cases, the cause is the jewellery — a coating that has begun to wear, exposing the base metal directly to healing tissue.

Why gold-filled is better but still not ideal for initial piercings

Gold-filled jewellery occupies a middle position that is often misunderstood. The gold layer is genuinely substantial — 50 to 100 times thicker than standard electroplating — and for fully healed piercings worn intermittently, gold-filled pieces can perform well for extended periods.

The problems in a piercing context:

• The bond can degrade. The mechanical bond between the gold layer and the base metal core is created under heat and pressure, not chemical fusion. In a moist, warm environment — which a healing piercing is, continuously — that bond can weaken over time. Gold-filled jewellery worn in a healing piercing is subject to more aggressive degradation conditions than the same piece worn externally.
• The base metal is still there. The gold layer in gold-filled jewellery is a layer on a core, not the composition of the piece itself. If the layer is compromised — through wear, a manufacturing defect, or the edges of the piece — the base metal is directly accessible.

Gold-filled is an acceptable budget option for fully healed piercings in some contexts. It is not the standard we maintain at Platinum Point, and we do not recommend it for unhealed tissue.

Why solid 14k or 18k gold is correct for body jewellery

Solid gold is the same material all the way through. There is no coating to wear, no base metal to expose, no bond to degrade. When a solid 14k gold piece is placed in a piercing — fresh or healed — the tissue is in contact with 14k gold. That remains true indefinitely.

Solid gold in appropriate alloys meets ASTM F136-compliant standards for body jewellery. The alloy metals in properly formulated body jewellery gold — the 41.7% that is not pure gold in a 14k piece — are selected for biocompatibility and do not include nickel at levels that cause reactions in standard use.

This is the standard applied to all jewellery at Platinum Point. Every piece in the studio is BVLA solid gold or 950 platinum. There is no plated, filled, or coated option in the collection, because those categories do not meet the standard we apply to what is placed against human tissue.

14k vs 18k for piercings

Both 14k and 18k solid gold in correct alloys are appropriate for body piercing. The practical differences:

• 14k (585): 58.3% pure gold. Harder and more durable — better resistance to scratching and deformation from wear. Available in the widest range of colours (yellow, white, rose). Lower cost than 18k for the same design. The practical choice for most body jewellery applications where the piece will be subject to daily wear and occasional contact.
• 18k (750): 75% pure gold. Richer, deeper colour in yellow gold. Softer than 14k, which means it requires slightly more careful handling but is also easier to work for very fine stone settings. The preferred choice for clients with documented sensitivities to alloy metals, as the higher gold purity reduces the proportion of alloy metals in contact with skin. Higher cost.

Both are safe. The choice between them is largely practical and aesthetic. For most clients building an ear curation at Platinum Point, 14k yellow or white gold is the starting point. Clients with specific sensitivities or strong preferences for richer colour are guided toward 18k or 950 platinum.

What solid gold jewellery looks like at Platinum Point

Every piece of jewellery at Platinum Point is BVLA — Body Vision Los Angeles — produced in solid 14k yellow, white, and rose gold, 18k gold, and 950 platinum. Stone settings use genuine diamonds, opals, sapphires, tourmalines, and other natural and laboratory stones.

We are New Zealand's only exclusive BVLA studio, holding the largest BVLA stock in the country. Every piece is sized, selected, and fitted by a qualified piercer at the appointment — not handed over in a box for self-fitting. Correct sizing is as important as correct material: a piece that fits incorrectly creates the same problems as a piece made from the wrong material.

Full details of the collection are in the jewellery section of the site. The BVLA page covers the brand in detail. Current pricing is on our pricing page.