Diamond Ring Metals

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Diamond Ring Metals — Platinum, White Gold, Yellow Gold & Rose Gold

The metal you choose for your engagement ring or diamond jewellery affects not just the appearance of the piece — but its durability, maintenance requirements, and how it interacts with your diamond. Here's a complete guide to the main metal options available at Diamond Imports.

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Platinum

Platinum is the most prestigious metal for diamond jewellery. It is naturally white — unlike white gold, which is yellow gold mixed with white alloys and then rhodium-plated to achieve a white appearance. Platinum's natural whiteness never fades, never needs replating, and is the purest metal used in fine jewellery (typically 95% pure platinum).

Platinum is also the densest and most durable of the jewellery metals. It is extremely resistant to wear, hypoallergenic, and develops a natural patina over time that many people find beautiful and distinctive.

Best for: Those who want the finest, most durable, most prestigious metal.
Colour grades: Suits all diamond colour grades.
Things to know: Platinum scratches more visibly than gold initially, but scratches can be polished out by a jeweller.

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White Gold

White gold is the most popular metal for engagement rings in Australia. It is made by alloying yellow gold with white metals such as palladium or nickel, then plated with rhodium to give it a bright, reflective white finish. For engagement rings, 18ct is generally preferred for its superior lustre and hypoallergenic properties.

The rhodium plating on white gold will wear over time — typically every 1–3 years depending on wear — and the ring will need to be re-plated to restore its bright white appearance. This is a simple, inexpensive process performed by any good jeweller.

Best for: Those who want a white metal look at a more accessible price point than platinum.
Colour grades: Suits G colour and above for best appearance in white metal.

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Yellow Gold

Yellow gold is the most traditional metal for jewellery and has experienced a significant revival in recent years. For engagement rings, 18ct is generally preferred for its superior colour and feel.

A significant advantage of yellow gold: it complements lower diamond colour grades beautifully. A G, H, or even I colour diamond that might appear slightly warm in a white metal setting will look perfectly white in yellow gold — because the warm metal absorbs the slight tint of the diamond. This can represent significant savings without any sacrifice in appearance.

Best for: Those who love warmth, tradition, or contemporary fashion. Also excellent for buyers who want to maximise diamond size for their budget.
Colour grades: G through J can all look beautiful in yellow gold.

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Rose Gold

Rose gold is made by alloying gold with copper, which gives it its characteristic warm pink colour. It is typically harder than yellow or white gold due to the copper content. Rose gold is particularly flattering on warm skin tones and creates a beautiful, distinctive look when combined with most diamond shapes.

Best for: Those who want something romantic, distinctive, and fashion-forward.
Things to know: Rose gold cannot be rhodium plated. Its colour is permanent.

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Which Metal Should You Choose?

Metal	Durability	Maintenance	Price	Best Diamond Colour
Platinum	Excellent	Low	Highest	D–J
18ct White Gold	Very Good	Re-plate every 1–3 years	High	G–J
18ct Yellow Gold	Very Good	Low	Moderate	G–J (J looks great)
18ct Rose Gold	Very Good	Low	Moderate	G–J
9ct Gold (any colour)	Good	Low	Lower	All grades

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