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A naturally white precious metal, beautifully suited to diamond engagement rings, wedding rings and eternity rings.
Choosing an engagement ring often begins with the diamond, but the precious metal surrounding it shapes how the finished ring looks, feels and wears.
At John Macintyre & Son, Platinum 950 is our preferred white metal for diamond engagement rings. Its naturally white colour complements diamonds without relying on rhodium plating, while its durability suits jewellery worn every day.
For many customers, platinum becomes the naturally white thread connecting an engagement ring, wedding ring and, perhaps one day, an eternity ring. We can help you consider how the rings will look, fit and wear together.
During a private appointment, we can explain how platinum and white gold differ in appearance, weight, maintenance and price, helping you decide which is best suited to your chosen design and how you plan to wear it.
It may surprise you that platinum, traditionally regarded as a premium precious metal, is currently priced below 18ct white gold in our white metal engagement ring range. We choose Platinum 950 first for its qualities and suitability for everyday jewellery. The current price advantage is a welcome extra.
Precious metal prices can change, so we will confirm the current options and prices for your chosen design.
For a practical price comparison, we checked our matching 6 mm concave wedding band in Platinum 950 and 18ct white gold. At the time checked, the platinum version was priced below the matching 18ct white gold version. We will confirm the current prices for your chosen design.
Prices checked 18 October 2026. Prices can change, and comparisons must use matching designs and specifications. 9ct gold remains a less expensive option.
One of the best ways to understand how platinum and white gold change over time is to compare rings that have been worn for years.
"These are my own two rings. My platinum engagement ring has not been professionally polished for around 11 years, while my 18ct white gold dress ring is rhodium plated every few years. I wear them on different hands, but photographing them together lets you see the difference in their appearance. My platinum ring has developed a softer finish, known as patina, while I have my white gold ring replated to maintain its brighter white appearance."
Platinum develops a softer patina with wear. It does not need rhodium plating to maintain its naturally white colour, and professional polishing is optional if you prefer a brighter finish.
18ct white gold is often rhodium plated for a bright white finish. As the coating wears, the warmer colour of the gold alloy beneath may become more noticeable. Replating can restore the brighter appearance.
If you wear three white gold rings plated with rhodium, you may eventually choose to have them replated at the same time for a consistent finish. This is a paid service, and how often it is needed depends on wear. We offer rhodium plating for jewellery purchased from John Macintyre & Son and will explain the cost before any work is agreed.
Platinum is particularly well suited to the claws and mount that hold your diamond, provided the setting is carefully designed and made. Diamond security depends on choosing the right number, type, size and placement of claws for the diamond's shape. For example, a V shaped claw can help protect the vulnerable point of a marquise diamond. The claws should hold the diamond securely without unnecessarily obscuring it, and the skill of the person setting the diamond remains essential.
We consider all of these details when selecting our engagement rings. Regular checks are also important because even a carefully made setting can wear or be damaged through everyday use. For engagement rings purchased from us, we recommend a complimentary check every six months, or sooner if you have any concerns.
When choosing your wedding ring, it is worth considering how it will sit alongside your engagement ring, both in appearance and through everyday wear.
We generally recommend a platinum wedding ring with a platinum engagement ring. Rings worn together naturally come into contact, and platinum can increase wear on an adjoining 18ct gold ring over time. Matching the metals also helps maintain a consistent colour and finish.
If you already have an 18ct white gold wedding ring and are choosing a new engagement ring, we can discuss matching 18ct white gold options. We will look at how the rings fit together, explain the differences and help you make an informed choice.
If you add an eternity ring to platinum engagement and wedding rings, we would generally recommend continuing with platinum. We will also consider how all three rings sit together, as the shape and setting of an eternity ring can affect the fit, particularly when diamonds are set close to the edges.
We can help you choose a design that complements your existing rings, including custom fit options where needed, so the rings look beautiful together and feel comfortable to wear.
If you prefer the warmth of 18ct yellow gold, you can still benefit from platinum around the diamond. Many of our mined and lab-grown diamond engagement ring designs can be ordered with an 18ct yellow gold shank and a Platinum 950 head.
The yellow gold shank gives the ring its warm colour, while the naturally white platinum head showcases the diamond without relying on rhodium plating. Platinum's toughness also suits carefully designed claws, although skilled setting and regular checks remain important.
We will confirm which combinations are available for your chosen design.
If you have a diamond ring you love, it may be possible to keep your existing diamonds and have them reset into a newly made Platinum 950 mount.
We will carefully assess your diamonds, discuss designs that may be suitable and explain what is involved before you decide whether to proceed.
These photographs show two genuine examples of rings we have remodelled for customers, using their original diamonds in new platinum settings.
When fine scratches develop, some of the platinum can move across the surface rather than being worn away. Over time, this contributes to the softer finish known as patina. Platinum can still wear, and both platinum and gold benefit from proper care.
Gold rings also develop surface marks. In some designs, everyday abrasion gradually removes material and can contribute to a thinner ring over many years. How quickly any ring wears depends on its alloy, design and use.
Professional refinishing removes a little surface metal, so avoiding unnecessary polishing can help preserve a ring over the years. We recommend occasional checks and polishing only when needed.
A worn or damaged claw can allow a diamond to become loose, sometimes before the problem is obvious. If your ring receives a knock, catches on something, a diamond appears to move or you have any other concern, please bring it to us sooner rather than waiting for the next check. Repairing a worn claw before it fails is normally far less costly than replacing both the claw and a lost diamond. We will check the claws, setting and finish, and explain any work that may be needed before anything is agreed.
Platinum is naturally dense, so a matching platinum ring will often feel more substantial than one made in gold. In a genuine finger size U comparison, the Platinum 950 ring weighed 14.07 g and the matching 18ct white gold ring approximately 10.5 g.
Platinum's density can be an advantage in rings, giving them a substantial feel, but it is not always practical for every type of jewellery. For example, using platinum in diamond drop earrings could make the finished earrings heavier than is comfortable or affect how they hang from the ear. The most suitable metal therefore depends on the design, size and intended wear of the piece.
Some customers enjoy platinum's substantial feel, while others prefer a lighter ring. Many of our showroom samples are made in silver, so they do not reproduce the exact weight of a finished platinum or gold ring. During your appointment, we can explain how platinum's density may affect the weight of your chosen design and help you decide whether it is right for you.
Our genuine photographs taken before and after polishing show how professional polishing can refresh platinum's finish. Whether you prefer a brighter shine or its natural patina is a personal choice.
We generally recommend wearing platinum rings alongside other platinum rings, as contact between different metals can contribute to wear. Every ring is different, though, and we can advise after looking at your jewellery.
Not necessarily. Platinum develops a softer patina with everyday wear. If you prefer a brighter shine, professional polishing is an option, but it is not something every ring needs regularly.
Yes. Like every precious metal, platinum develops fine surface marks with wear. These marks gradually create its softer patina. Some customers enjoy this finish; professional polishing can restore a brighter appearance if preferred.
Platinum does not normally tarnish or change colour through everyday wear. Soap, hand cream and other residues can make a ring appear dull, so careful cleaning may restore its brightness.
Some fine scratches move platinum across its surface rather than removing it. Platinum can still lose material through wear and polishing, so occasional checks remain important.
Platinum 950 is generally well tolerated because it contains at least 95% platinum. However, everyone's skin is different, and no precious metal can be guaranteed to suit everyone. If you have a known sensitivity, tell us so we can help you ask about the specific alloy and its compliance information.
Yes. Many of our engagement ring designs can be ordered with an 18ct yellow gold band and a Platinum 950 head. We can confirm what is available for your chosen design.
No. Platinum is currently the less expensive white metal option in our engagement ring range. Our matching platinum wedding bands were also priced below their 18ct gold equivalents when checked in October 2026. Prices can change, so we will confirm the latest comparison.
Often, yes. We can assess your diamonds, discuss suitable designs and explain what is involved before you decide whether to proceed.
If you would like to understand the metal in more detail, the sections below explain Platinum 950, hallmarks, metal sensitivity and where platinum comes from.
The 950 mark in an official hallmark tells you about the purity of the metal. Platinum 950 contains at least 95% pure platinum, or 950 parts in every 1,000. Other elements make up the remaining proportion and help give the alloy the properties needed for fine jewellery.
Platinum 950 is the standard we offer. Its exact composition and working properties can vary between manufacturers.
Fineness measures precious metal content; it does not by itself guarantee scratch resistance or predict how a finished ring will wear. Design, manufacture and everyday use also matter.
An official UK hallmark offers independent assurance about the precious metal content of your ring. Assay Offices check jewellery against the required standards before applying the hallmark. A ring that does not contain at least 95% platinum cannot receive a Platinum 950 hallmark.
A complete UK hallmark contains three compulsory marks: the sponsor's mark, the metal and fineness mark, and the Assay Office mark. We can show you the hallmark on your ring and explain what each mark means.
If you have sensitive skin, platinum may be a good choice to consider. Platinum 950 is generally well tolerated, but everyone's skin is different and no precious metal can be guaranteed to suit everyone.
Some jewellery alloys contain nickel, which can irritate sensitive skin. A Platinum 950 hallmark confirms the platinum content but does not identify every element in the remaining proportion of the alloy.
The EU and Great Britain limit how much nickel jewellery may release against the skin. The rules concern nickel release, not simply the amount in the alloy, and requirements can differ elsewhere. If you have a known sensitivity, tell us and we can help you ask about the specific alloy and its compliance information.
Irritation is not always caused by the metal. Dirt, soap and hand cream can collect around a ring, so careful cleaning, rinsing and drying may help. For practical advice, read our How to Clean Diamond Jewellery at Home guide.
Both 9ct and 18ct white gold are made by combining gold with other metals to produce a paler alloy. The main difference is the amount of gold they contain.
At John Macintyre & Son, 18ct gold is our principal gold choice for fine diamond engagement rings, although selected designs are also available in 9ct gold. We can explain how each choice affects your design and price range.
Platinum is element 78 on the periodic table, with the chemical symbol Pt. Pure platinum has a density of approximately 21.5 grams per cubic centimetre and a melting point of around 1,768°C. Platinum 950 can vary slightly because it is an alloy.
It is one of six platinum group metals. Beyond jewellery, platinum is also used in vehicle emissions control systems, certain medical equipment and hydrogen technologies.
Platinum occurs naturally in very small quantities within certain rocks. Over millions of years, geological processes concentrated minerals containing platinum into deposits that can be mined.
Many important deposits formed as molten rock cooled and platinum group elements became concentrated within layers rich in minerals.
Important deposits are found in South Africa, Zimbabwe and the United States. Once extracted, material containing platinum must be processed and refined before the metal can be used in jewellery.
Family run in Glasgow since 1965, John Macintyre & Son helps customers choose, remodel and care for diamond jewellery through private appointments.
During a private appointment, you can view our sample rings, compare different designs and discuss which precious metal best suits your chosen style, how you plan to wear it and your price range. We will explain how platinum and 18ct gold differ in colour, weight and maintenance so you can make an informed choice.
We can also help you choose between GIA graded mined diamonds and IGI graded lab-grown diamonds, find a wedding ring to complement your engagement ring, or explore a new platinum setting for diamonds you already own.
Jennifer – Sales Manager
