Platinum vs White Gold Engagement Ring: The Honest Comparison
Platinum and white gold are both excellent choices for an engagement ring, but they behave differently over time, cost differently, and suit different lifestyles. Platinum is denser, more durable, and naturally white — but costs more. White gold is more affordable, slightly lighter, and requires rhodium plating to maintain its white appearance — but that maintenance is straightforward and inexpensive.
TL;DR: For most people, 18ct white gold is the practical choice — it looks nearly identical to platinum, costs significantly less, and requires only occasional rhodium plating to maintain its appearance. Platinum is worth the premium for wearers with nickel sensitivity, those who want a metal that requires no replating, or those commissioning a piece they want to hand down unchanged. Both are available for bespoke commissions at À Vie Diamonds.
What Is Platinum?
Platinum is a naturally white, dense precious metal. In jewellery it is used at 950 purity (95% pure platinum, 5% iridium or ruthenium), which means it is considerably purer than gold alloys. It is hypoallergenic, heavier than gold, and does not require any surface coating to maintain its white colour.
When platinum scratches, the metal displaces rather than disappears — the scratch creates a patina that most wearers come to appreciate as a natural characteristic of the metal. This patina can be polished back to a high shine if preferred.
What Is White Gold?
White gold is yellow gold alloyed with white metals — typically palladium, nickel, or manganese — to give it a paler appearance. At 18ct (75% gold), the base colour is a warm off-white or very pale yellow. Jewellers apply a rhodium plating to the finished piece, which gives it the bright white appearance associated with white gold engagement rings.
Rhodium is a platinum-group metal, so the plating is highly durable — but it does wear off over time, typically needing replacement every one to three years depending on the wearer's skin pH and how frequently the ring contacts surfaces.
Platinum vs White Gold: A Direct Comparison
| Factor | Platinum (950) | 18ct White Gold |
|---|---|---|
| Purity | 95% platinum | 75% gold |
| Colour | Naturally white | Off-white, rhodium plated |
| Maintenance | None (patinas naturally) | Rhodium replating every 1–3 years |
| Weight | Heavier | Lighter |
| Durability | Excellent — metal displaces not loses | Excellent — harder than platinum |
| Hypoallergenic | Yes | Depends on alloy (nickel-free is safer) |
| Price premium | 30–50% more than white gold | — |
| Hallmark | 950 Pt | 750 (18ct) |
| Scratch behaviour | Patina develops | Visible surface scratches |
The Case for Platinum
No maintenance required. Platinum does not need replating. Its colour is permanent and integral to the metal. For a buyer who wants a ring that can be worn daily for decades with no intervention, this is a meaningful advantage.
Hypoallergenic. Platinum does not contain nickel, which is the most common cause of metal allergies in jewellery. If the wearer has a history of reactions to metal jewellery, platinum is the safer choice.
Patina character. Many wearers prefer the way platinum ages — developing a satin-like patina over time that gives the ring a distinctly worn, characterful appearance.
Prong security. Platinum’s malleability means prongs tend to bend rather than snap, and the metal holds its grip on the stone over time without wearing thin in the way that gold prongs can.
The Case for 18ct White Gold
Lower cost. For an equivalent ring design, 18ct white gold typically costs 30 to 50 per cent less than platinum. On a £3,000 commission, that is a meaningful saving that could go toward a better centre stone.
Harder surface. Counter-intuitively, white gold is harder than platinum, meaning it is more scratch-resistant day to day.
Lighter weight. Some wearers prefer the lighter feel of white gold, particularly for larger ring designs where platinum weight becomes noticeable.
Maintenance is manageable. Rhodium replating typically costs £50 to £150 and takes twenty-four to forty-eight hours. Most wearers need it every eighteen months to three years.
Which Metal Is Right for You?
Choose platinum if: the wearer has nickel sensitivity; you want a maintenance-free metal; you are commissioning a ring intended to be heirloom quality over multiple generations; or the wearer particularly values the patina character platinum develops.
Choose 18ct white gold if: budget is a consideration; the wearer prefers a lighter ring; you want to allocate more budget to the centre stone; or the wearer is comfortable with occasional replating.
If you are genuinely undecided, we recommend 18ct white gold for most clients — the appearance is nearly identical, the savings are real, and rhodium maintenance is straightforward. The only cases where we actively recommend platinum over white gold are nickel sensitivity, a strong preference for a patina over time, or a deliberately heirloom brief.
At À Vie Diamonds
Both platinum and 18ct white gold are available for all bespoke engagement ring commissions. We hallmark every piece at a UK Assay Office — 950 platinum and 750 (18ct) gold — and provide the hallmarking certificate with delivery.
Visit our engagement ring pricing guide for context on typical commission costs, or our metals guide for more detail on all available alloys. Get in touch to discuss which metal best suits your brief.
Frequently Asked Questions
Does platinum tarnish? No. Platinum does not tarnish. It develops a natural patina over time — a slight dulling and softening of the surface — which most wearers appreciate. This patina can be polished away if you prefer a high shine.
Is platinum worth the extra cost for an engagement ring? For most wearers, 18ct white gold offers equivalent appearance at a meaningfully lower cost. Platinum is worth the premium for wearers with nickel sensitivity, those who want a genuinely maintenance-free metal, or those commissioning a piece intended for multi-generational wear.
How often does white gold need replating? Rhodium plating on 18ct white gold typically lasts one to three years under daily wear. Replating is inexpensive (£50 to £150) and takes one to two days with most jewellers.
Can you mix platinum and white gold in one ring? Technically possible but not recommended. The two metals have different working properties, and mixing them creates difficulties at the join. For a bespoke commission, choosing one metal throughout gives a cleaner, more durable result.
Is white gold or platinum better for prongs? Platinum is generally preferred for prongs because its softness allows it to bend rather than snap under impact, maintaining the stone’s security. However, 18ct white gold prongs are more than adequate for daily wear.
Last reviewed: July 2026 · À Vie Diamonds