Polished Diamonds designs and crafts diamond rings in New Zealand, combining certified diamonds, advanced jewellery technology and skilled local craftsmanship. Whether you are choosing an engagement ring, celebrating a special occasion or creating something completely unique, our team can help you find a design that suits your personal style, lifestyle and budget. Creation takes 1-2 weeks in our NZ workshop.
Our rings are available with natural or lab-grown diamonds, providing flexibility across diamond size, quality, origin and price. We can guide you through the 4Cs—cut, colour, clarity and carat weight—as well as diamond proportions, brilliance and overall appearance. This helps you choose a diamond based not only on its grading report, but also on how it will look in the finished ring.
Choose from platinum, white gold, yellow gold or rose gold, with every design able to be personalised. Our custom diamond ring design service uses CAD technology to produce detailed digital renders before manufacturing, allowing the proportions, setting and finer details to be reviewed and refined. We can also 3D-print a resin copy to try for added assurance.
With walk-in jewellery showrooms in Auckland, Wellington and Christchurch, Polished Diamonds provides personal service to customers throughout New Zealand. Explore our collection below to compare diamond ring styles, diamond shapes and precious metals, or speak with our team about creating a diamond ring specifically for you.
This Emerald Cut Trilogy Diamond Ring RT4 in luxurious Platinum boasts a stunning sparkle and exudes elegance and sophistication. The claws and setting are straight to complement the shape of the Emerald Cut Diamonds. The price for the Trilogy Ring RT4 includes the Platinum ring and (2x) 0.25ct Emerald Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Emerald Cut Trilogy Diamond Ring RT4 in beautiful Rose Gold boasts a stunning sparkle and exudes elegance and sophistication. The claws and setting are straight to complement the shape of the Emerald Cut Diamonds. The price for the Trilogy Ring RT4 includes the Rose Gold ring and (2x) 0.25ct Emerald Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Emerald Cut Trilogy Diamond Ring RT4 in bright White Gold boasts a stunning sparkle and exudes elegance and sophistication. The claws and setting are straight to complement the shape of the Emerald Cut Diamonds. The price for the Trilogy Ring RT4 includes the White Gold ring and (2x) 0.25ct Emerald Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Emerald Cut Trilogy Diamond Ring RT4 in classic Yellow Gold boasts a stunning sparkle and exudes elegance and sophistication. The claws and setting are straight to complement the shape of the Emerald Cut Diamonds. The price for the Trilogy Ring RT4 includes the Yellow Gold ring and (2x) 0.25ct Emerald Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Princess Cut Trilogy Diamond Ring RT5 in luxurious Platinum is a terrific design featuring a flowing claw setting. The diamonds are suspended for maximum sparkle, and the square shape is modern, offering high performance and elegant looks. The price for the Trilogy Ring RT5 includes the Platinum ring and (2x) 0.25ct Princess Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Princess Cut Trilogy Diamond Ring RT5 in beautiful Rose Gold is a terrific design featuring a flowing claw setting. The diamonds are suspended for maximum sparkle, and the square shape is modern, offering high performance and elegant looks. The price for the Trilogy Ring RT5 includes the Rose Gold ring and (2x) 0.25ct Princess Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Princess Cut Trilogy Diamond Ring RT5 in bright White Gold is a terrific design featuring a flowing claw setting. The diamonds are suspended for maximum sparkle, and the square shape is modern, offering high performance and elegant looks. The price for the Trilogy Ring RT5 includes the White Gold ring and (2x) 0.25ct Princess Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Princess Cut Trilogy Diamond Ring RT5 in classic Yellow Gold is a terrific design featuring a flowing claw setting. The diamonds are suspended for maximum sparkle, and the square shape is modern, offering high performance and elegant looks. The price for the Trilogy Ring RT5 includes the Yellow Gold ring and (2x) 0.25ct Princess Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Round Brilliant Trilogy Diamond Ring RT6 in luxurious Platinum is a favourite style that suspends the diamonds for maximum sparkle. It is a timeless design that will never date and looks terrific! The price for the Trilogy Ring RT6 includes the Platinum ring and (2x) 0.25ct Round Brilliant Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Round Brilliant Trilogy Diamond Ring RT6 in beautiful Rose Gold is a favourite style that suspends the diamonds for maximum sparkle. It is a timeless design that will never date and looks terrific! The price for the Trilogy Ring RT6 includes the Rose Gold ring and (2x) 0.25ct Round Brilliant Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Round Brilliant Trilogy Diamond Ring RT6 in bright White Gold is a favourite style that suspends the diamonds for maximum sparkle. It is a timeless design that will never date and looks terrific! The price for the Trilogy Ring RT6 includes the White Gold ring and (2x) 0.25ct Round Brilliant Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
This Round Brilliant Trilogy Diamond Ring RT6 in classic Yellow Gold is a favourite style that suspends the diamonds for maximum sparkle. It is a timeless design that will never date and looks terrific! The price for the Trilogy Ring RT6 includes the Yellow Gold ring and (2x) 0.25ct Round Brilliant Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
Our Oval Cut Trilogy Diamond Ring RT7 in luxurious Platinum uses a minimalist setting to hold the gems securely while allowing maximum light to enter from every angle. The price for the Trilogy Ring RT7 includes the Platinum ring and (2x) 0.25ct Pear Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
Our Oval Cut Trilogy Diamond Ring RT7 in beautiful Rose Gold uses a minimalist setting to hold the gems securely while allowing maximum light to enter from every angle. The price for the Trilogy Ring RT7 includes the Rose Gold ring and (2x) 0.25ct Pear Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
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This product has multiple variants. The options may be chosen on the product page
Our Oval Cut Trilogy Diamond Ring RT7 in bright White Gold uses a minimalist setting to hold the gems securely while allowing maximum light to enter from every angle. The price for the Trilogy Ring RT7 includes the White Gold ring and (2x) 0.25ct Pear Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
Select options
This product has multiple variants. The options may be chosen on the product page
Our Oval Cut Trilogy Diamond Ring RT7 in classic Yellow Gold uses a minimalist setting to hold the gems securely while allowing maximum light to enter from every angle. The price for the Trilogy Ring RT7 includes the Yellow Gold ring and (2x) 0.25ct Pear Cut Diamonds on the sides. Select a Natural or Lab-Grown Diamond for the centre stone, and the gold quality to complete the price. Visit a Polished Diamonds Showroom or contact us for personal service and friendly advice.
Select options
This product has multiple variants. The options may be chosen on the product page
View Our Diamond Ring Styles
Diamond ring styles influence the overall look, setting height and character of a ring. From timeless solitaire and elegant trilogy designs to sparkling halo, vintage-inspired and diamond-set styles, each option offers a different balance of simplicity, brilliance and detail. Explore our diamond ring styles below to compare their features, discover which designs suit your preferred diamond shape and lifestyle, and find inspiration for a custom diamond ring created around your taste and budget.
The shape of a diamond has a major influence on the overall style, brilliance and appearance of a diamond ring. From the timeless sparkle of a round brilliant diamond to the elegant proportions of oval, emerald, pear and marquise cuts, each shape offers a distinct look and character. Polished Diamonds creates custom diamond rings in ten popular diamond shapes, including round, oval, princess, radiant, emerald, cushion, pear, marquise, Asscher and heart. Explore the diamond shapes below to compare their appearance, proportions and design possibilities, and find the shape that best suits your personal style, preferred ring setting and budget.
Each item takes about 1-2 weeks in our dedicated NZ workshop
Certified natural & lab-grown diamonds with options of coloured gemstones
Platinum, white gold, yellow gold and rose gold options
Personal service in our Auckland, Wellington and Christchurch design studios
Lifetime manufacturing guarantee on workmanship. NZ-made quality
Online, in-store and virtual design assistance
Diamond Rings Frequently Asked Questions
How do I choose the right diamond ring?
Start by considering the wearer’s personal style, preferred diamond shape, ring setting, metal and your available budget. Next, compare diamonds using the 4Cs: cut, colour, clarity and carat weight. Polished Diamonds can help you compare suitable options and create a custom diamond ring that balances appearance, quality, practicality and price.
What are the 4Cs of diamond quality?
The 4Cs are cut, colour, clarity and carat weight. Cut influences how effectively a diamond reflects light and sparkles. Colour measures how colourless a white diamond appears, while clarity evaluates inclusions and surface characteristics. Carat measures the diamond’s weight rather than its visible dimensions. The best combination depends on your budget and personal priorities.
What diamond ring styles can I choose from?
Popular diamond ring styles include solitaire, solitaire accent, halo, trilogy (three-stone), vintage, eternity, and anniversary rings. A solitaire highlights one central diamond, while halo and accent designs add extra sparkle. Trilogy rings feature three principal stones, and vintage designs use decorative details inspired by earlier jewellery periods. Every style can be customised.
Which diamond shape should I choose?
Choose a diamond shape that suits the wearer’s style rather than following a single rule. Round brilliant diamonds offer a classic appearance and strong sparkle. Oval, pear and marquise diamonds create an elongated look. Emerald and Asscher cuts produce broad, elegant flashes of light, while princess, cushion and radiant diamonds offer distinctive geometric alternatives.
Which diamond shape looks the largest?
Elongated diamonds such as oval, pear and marquise shapes can appear larger from above than some round diamonds of the same carat weight. However, carat weight does not determine visible size on its own. A diamond’s measurements, proportions, depth and setting all affect how large it appears on the finger. Consider using Lab-Diamonds to enable a larger size within yoiur budget.
Are lab-grown diamonds real diamonds?
Yes. Lab-grown diamonds are real diamonds with essentially the same chemical composition, crystal structure and physical properties as natural diamonds. The principal difference is their origin: natural diamonds form in the earth, while lab-grown diamonds are produced under controlled conditions. Both can be independently graded for cut, colour, clarity and carat weight.
