How to Care for a Platinum Jewel (Patina and Polishing)
The metal that develops a signature patina without wearing away
Written by Déborah Baid, Founder · Mayuri ParisReading 9 min6 chapters
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Platinum is the only precious metal that develops a patina without losing material. This matte grey veil redistributes the surface; it does not erode it. Unlike gold, which wears down, or vermeil, which thins over time, platinum retains its mass year after year. The patina becomes a personal signature of the piece, the imprint of your life with it.
A 95% pure alloy (with 5% iridium or ruthenium), absolutely hypoallergenic, and the benchmark for medical implants: platinum requires very little upkeep. It does not oxidise, does not tarnish, and withstands the demands of everyday life. Here is how to preserve its brilliance or, alternatively, embrace its noble patina.
This guide covers routine cleaning, professional polishing, storage, and the distinction between platinum and palladium. You will know exactly how to care for this metal that stands the test of time.
Why Platinum Requires So Little Maintenance
Platinum is 95% pure. The remaining 5% is iridium or ruthenium, alloyed to enhance hardness without compromising biocompatibility. It is one of the few metals used in its near-pure form in fine jewellery. 18K gold, by comparison, contains 75% gold and 25% various alloys, including copper, silver, and palladium.
This purity gives platinum absolute hypoallergenic properties. No nickel, no copper, no potentially irritating agents. It is the benchmark metal for medical implants, from cardiac pacemakers to dental prosthetics. Wearing platinum means wearing a metal that simply does not react.
Platinum does not oxidise. No tarnishing, no darkening on contact with air, salt water, or perspiration. It passes through the years without changing colour. What you observe on the surface after several months of wear is a patina, not a chemical alteration. We will return to this point.
Finally, platinum is dense and resilient: 21.45 g/cm³, compared to 19.3 g/cm³ for 18K gold. This density makes it heavier to wear, but also more stable. A platinum piece goes through daily life without losing its shape.
A platinum wedding ring with a matte brushed finish worn on the finger, everyday care by Mayuri
The Patina of Platinum: A Signature, Not a Sign of Wear
After a few weeks of wear, your platinum piece develops a matte grey veil. This is not wear. It is a redistribution of the surface. Platinum does not lose material; it reorganises. The micro-scratches of everyday life create a satin, diffuse texture that reflects light differently.
Gold, by contrast, erodes. An 18K gold wedding ring worn daily loses approximately 1 to 2% of its weight per decade through mechanical wear. Vermeil thins over time. The 5-micron gold layer wears away until the silver beneath becomes visible. Platinum does not. Its mass remains intact. Surface particles shift and settle, but do not detach.
This is a key distinction in terms of lasting value. Platinum is the only metal that does not lose its intrinsic value as it ages. The piece gains its history without losing its substance. The patina becomes a personal signature: every gesture, every day worn, is readable on its surface. Some clients seek this quality; others prefer the original mirror-bright finish. Both are entirely valid choices.
The choice is yours: preserve the patina, or have it removed through professional polishing. We address this option further on.
Close-up of the satin patina on a platinum wedding ring worn daily, delicate crisscrossing surface marks
Routine Cleaning of a Platinum Jewel
Platinum is cleaned with warm soapy water, nothing more. Fill a bowl with warm water and add a few drops of mild soap, such as washing-up liquid or liquid Marseille soap. Submerge your piece and leave it to soak for two minutes.
Take a soft-bristled toothbrush. Gently scrub the areas where dirt tends to accumulate: the inside of the band, the underside of the setting, and any engravings. Platinum can withstand a brush, but the set stones may be more delicate (Emerald, opal, pearl). If your piece features a fragile stone, brush only the metal.
Rinse under clean, running water, holding the piece over the sink. Close the drain before you begin. Dry with a soft cotton or microfibre cloth. Avoid paper towels, as they are too abrasive.
Frequency: every two to three months if you wear your piece daily, or as soon as you notice any build-up of residue such as cream, soap, or dust. Platinum does not tarnish, but it accumulates deposits just like any other metal.
Products to avoid: toothpaste (abrasive), baking soda (too harsh), and household chemicals such as bleach or acids. None of these will cause chemical damage to platinum, but they may scratch the surface or affect the set stones.
A hammered platinum wedding ring, detail of the crafted texture requiring appropriate care
Polishing restores the original brilliance of the metal. A jeweller uses a polishing wheel fitted with a diamond compound. The surface is smoothed, micro-scratches are erased, and the platinum regains its mirror-bright finish. The process takes between ten and thirty minutes, depending on the size of the piece.
The difference from gold is significant: polishing platinum preserves the mass of the metal. There is no loss of weight. The surface particles are redistributed rather than removed. Gold, by contrast, loses a fine layer of material with each polishing. After fifteen sessions, a gold wedding ring can lose up to one gram.
Not all jewellers are equally skilled in polishing platinum. The metal is harder than gold, requiring a specific compound and consistent pressure. At Mayuri, our partner workshops in Thailand and Paris work with platinum every day. Entrust your piece to a professional who truly understands its density and resilience.
A close-set Diamond on a brushed platinum bangle, close-up on the characteristic matte texture of the metal
Recommended frequency: every two to three years for a piece worn daily, or whenever the patina no longer appeals to you. Some clients polish their wedding ring once a year; others allow it to develop a patina over a lifetime. This is an aesthetic choice, not a technical requirement.
If you love a mirror finish, polishing is your greatest ally. If you prefer the satin patina that quietly tells the story of your years together, simply let it settle.
Storage and Precautions
Platinum resists scratches better than gold, but it can leave scratches on other metals. Its density and hardness make it an exceptionally robust material. Store your platinum pieces separately: in a dedicated compartment within your jewellery box, in an individual soft fabric pouch, or in their original jewellery case.
Two platinum pieces stored together can scratch one another. Surface scratches do not alter the integrity of the metal, but they do accelerate the patina process described above. If you wish to preserve a polished finish for longer, avoid any contact between pieces.
Remove your piece before activities that carry a risk of impact: sport, DIY, gardening. Platinum does not deform easily, but a sharp blow can damage the setting or bend a slender band. This is not a question of fragility, simply a matter of common sense.
No harsh chemicals. Platinum resists mild acids and bases, but bleach, industrial detergents, and strong solvents can damage set stones or leave residue that is difficult to remove. Remove your rings before washing dishes or cleaning, not to protect the Platinum itself, but to preserve the gemstones.
Frequently Asked Questions About Platinum Care
Is my jewellery made of platinum or palladium white gold?
The hallmark settles it in seconds: Platinum bears the dog's head mark (950 ‰), while palladium white gold remains an 18K gold and bears the eagle's head mark. For everyday care, the guidance in this guide applies to Platinum; white gold follows our dedicated 18K gold guide. If in doubt, a jeweller can identify the metal without damaging the piece.
Does platinum turn black?
No. Platinum does not oxidise. The patina is a soft, matte grey veil that redistributes the surface layer, not a chemical darkening. The metal remains silvery-white beneath the patina. A professional polish restores the original brilliance without altering the material.
What do customers say about platinum jewellery?
Unanimous on durability and hypoallergenic properties. Customers with sensitive or reactive skin consistently choose platinum as the only metal they can wear without irritation. Appreciation for the patina is a personal matter: some seek it out as the signature of a well-worn piece, while others prefer a polished shine and have their jewellery repolished every two years.
Is platinum suitable for everyday wear?
Yes. Platinum is the densest and most durable metal in fine jewellery (21.45 g/cm³). It does accumulate surface scratches, as all metals do, but its mass remains intact. A platinum wedding ring worn daily for fifty years loses no weight whatsoever. Gold, by comparison, erodes by 1 to 2% per decade.
Can you clean platinum with baking soda?
We do not recommend it. Baking soda is abrasive and can accelerate the formation of micro-scratches on the platinum surface, contributing to patina. Warm soapy water is more than sufficient. If your piece requires a deeper clean, entrust it to a professional jeweller.
How much does professional platinum polishing cost?
Between $35 and $100 depending on the complexity of the piece and the jeweller. A simple ring costs less than a multi-strand necklace. Polishing Platinum takes longer than polishing gold, as it is a harder metal, which explains the slightly higher price. Some jewellers offer this service free of charge if you purchased the piece from them.
Should you remove your platinum ring when washing your hands?
No. Platinum resists water, soap, and most everyday hygiene products. You can wear your ring daily. Remove it only before using harsh chemicals (bleach, industrial detergents) or before activities that risk impact (sport, DIY work).
Is platinum suitable for sensitive skin?
Absolutely. Platinum is completely hypoallergenic. 95% pure, nickel-free, copper-free, and free from any irritants. It is the reference metal for medical implants. If you react to white gold (which sometimes contains nickel) or vermeil (silver base), Platinum is your best option.
Does the patina on platinum reduce the value of the piece?
No. Patina is an aesthetic characteristic, not a form of deterioration. Platinum does not lose any material as it develops a patina. Its intrinsic value (metal weight and stone quality) remains unchanged. Some collectors even seek out patina as a mark of the piece's history. If you prefer a polished shine, a professional polish will restore the original appearance without any loss of value.
Can a platinum ring break?
Platinum is the least likely of all precious metals to break. It is dense and ductile: under a sharp impact, it bends rather than shatters. A ring may lose its round shape, but it will not snap cleanly the way a more brittle alloy would. A jeweller can restore it to its original form without adding any material, since nothing has actually been lost. The prongs wear down very slowly, which is why platinum is the reference metal for holding a precious stone securely over a lifetime. That said, have the setting checked once a year: it is the mount, never the metal itself, that gives way first.
