What Is White Gold?
White gold is genuine gold combined with other metals to create a paler, white-toned gold alloy suitable for jewellery.
Pure 24-carat gold is naturally yellow and too soft for most engagement rings worn every day. By alloying gold with carefully selected metals, jewellers can alter its colour and physical characteristics while retaining a defined proportion of pure gold.
White gold is commonly finished with a thin layer of rhodium, a bright white precious metal. This gives a freshly finished white gold ring its crisp, reflective appearance and creates an attractive neutral background around a diamond.
The underlying gold content is determined by the alloy’s carat, regardless of the rhodium finish.
9kt, 10kt, 14kt or 18kt White Gold?
Polished Diamonds offers white gold diamond rings in 9kt, 10kt, 14kt and 18kt white gold, allowing the precious metal specification to be considered alongside your diamond, ring design and budget.
The carat designation describes the proportion of pure gold within the alloy:
- 9kt white gold contains 37.5% pure gold
- 10kt white gold contains approximately 41.7% pure gold
- 14kt white gold contains approximately 58.5% pure gold
- 18kt white gold contains 75% pure gold
The remaining proportion consists of alloying metals selected to create the desired colour and wearing properties.
9kt White Gold
9kt white gold provides a practical way to choose genuine gold while allocating more of the overall ring budget towards the diamond or design. Its lower pure-gold content means a greater proportion of the alloy consists of other metals.
10kt White Gold
10kt white gold sits between 9kt and 14kt and provides another option when balancing gold content, ring design and price.
14kt White Gold
14kt white gold contains more pure gold than 9kt or 10kt while retaining a significant proportion of alloying metals. It is widely suited to engagement rings and fine jewellery where appearance, practicality and gold content all need to be considered.
18kt White Gold
18kt white gold contains 75% pure gold and is a traditional fine-jewellery alloy. It appeals particularly to clients who place greater importance on higher gold purity while still wanting the bright appearance of a white precious metal.
There is no single gold carat that is right for every client. Our jewellery designers can help you compare the appearance, weight, price and suitability of each option for the ring you are creating.
White Gold vs Platinum Diamond Rings
White gold and platinum can appear similar when freshly polished, but they are fundamentally different precious metals.
Platinum diamond rings are made from a naturally white, dense precious metal. Platinum does not require rhodium plating to create its colour and has a noticeably substantial feel on the finger.
White gold is a gold alloy and is generally lighter than an equivalent platinum ring. Its bright white jewellery finish is commonly created using rhodium plating, which may require refreshing as the ring is worn over time.
Platinum may appeal if you prefer a naturally white metal, greater density and minimal colour maintenance. White gold may suit someone who prefers the tradition of gold, a lighter feel or a different balance between metal specification and overall ring budget.
For a more detailed comparison, read our guide to platinum engagement rings and platinum vs white gold.
Does White Gold Need Rhodium Plating?
White gold jewellery is commonly rhodium plated to create its bright white surface finish.
Rhodium does not permanently change the underlying alloy. With everyday wear, the surface coating can gradually wear and the natural colour of the white gold beneath may become more visible, particularly on areas of the ring receiving the most contact.
How frequently a ring requires refinishing varies according to lifestyle, the design, how often it is worn and individual preference. Some people prefer to maintain a consistently bright white finish, while others are comfortable allowing the underlying character of the metal to become more visible between services.
Professional cleaning, inspection, polishing and rhodium refinishing can restore the appearance of a white gold engagement ring when required.
Why Choose White Gold for a Diamond Ring?
White gold remains particularly well suited to diamond jewellery because its neutral colour allows the diamond to remain visually dominant.
A white metal setting can blend naturally with a colourless or near-colourless diamond, creating a continuous transition between the precious metal and gemstone.
White gold is also highly versatile. It can give a simple solitaire diamond ring a clean contemporary appearance while also working beautifully with more detailed halo diamond rings, trilogy diamond rings and vintage diamond rings.
For additional brilliance through the band, explore our solitaire accent diamond rings.
White Gold vs Yellow Gold and Rose Gold
Metal colour has a major influence on the overall appearance of a diamond ring.
Yellow gold diamond rings create a warmer, more traditional contrast between the band and a white diamond.
Rose gold diamond rings introduce a softer pink-to-rose tone and can create a distinctive contemporary or vintage-inspired appearance.
White gold provides the most neutral gold colour of the three, allowing the diamonds and design proportions to become the dominant visual elements.
Rather than choosing solely according to current trends, consider the jewellery already worn, preferred colour palette, engagement-ring design and the wedding ring that may eventually sit beside it.
Explore our complete diamond ring collection to compare designs, diamond shapes and precious-metal options.
Natural or Lab-Grown Diamonds in White Gold
White gold can be paired with either a certified natural diamond or lab-grown diamond.
Both options work particularly well with a white precious metal and can be incorporated into virtually any diamond shape or ring style.
Natural diamonds appeal to clients who value natural geological origin and rarity, while lab-grown diamonds can provide greater flexibility around diamond size and specifications within a particular budget.
Our jewellery designers can help you compare suitable diamonds and then design the setting around the exact dimensions of your selected centre stone.
White Gold Engagement Rings and Wedding Rings
If your white gold engagement ring will eventually be worn alongside a wedding ring, it is worth considering the relationship between the two rings from the beginning.
Setting height, band profile, width, centre-stone position and decorative elements can all affect how closely a wedding ring will sit beside an engagement ring.
Using CAD allows these relationships to be considered before manufacture.
A matching white gold wedding ring creates a consistent appearance across the bridal set, while pairing white gold with yellow or rose gold can create a deliberate mixed-metal combination.
Custom White Gold Diamond Rings Made in New Zealand
Through our Design Your Own Diamond Ring service, Polished Diamonds can create a white gold engagement ring around your selected diamond, finger size, preferred gold carat and individual design.
Our jewellery designers use professional three-dimensional CAD before manufacture begins, allowing important details such as centre-diamond position, claw dimensions, band width, setting height, accent-stone placement and wedding-ring clearance to be accurately developed.
You can review detailed CAD renders and refine your design before the finished ring is produced.
Once approved, your white gold diamond ring is crafted through our dedicated New Zealand jewellery workshop, combining advanced jewellery technology with skilled craftsmanship, diamond setting and hand finishing.
Choose 9kt, 10kt, 14kt or 18kt white gold, select a natural or lab-grown diamond and create a ring specifically around the combination you prefer.
White Gold Diamond Rings in New Zealand
Visit Polished Diamonds in Auckland, Wellington or Christchurch to view white gold diamond rings and compare different precious metals, diamonds and setting styles in person.
Our jewellery designers can help you compare white gold with platinum, yellow gold and rose gold and explain how each option will influence the appearance, feel and ongoing care of your ring.
Choose an existing design, personalise one of our white gold diamond rings or create a completely custom engagement ring using CAD and skilled New Zealand manufacture.
For clients elsewhere in New Zealand, our design team can also assist remotely.
