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.
Our stunning Round Brilliant Eternity Diamond Ring Platinum 2.00ct RE1 sparkles across the room. It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. The number of diamonds can vary depending on finger size, and we base this price on size M. Contact usfor more information and personalised service, or visit our Polished Diamonds showroom.
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Our stunning Round Brilliant Eternity Diamond Ring Rose Gold 2.00ct RE1 sparkles across the room. It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. The number of diamonds can vary depending on finger size, and we base this price on size M. Contact usfor more information and personalised service, or visit our Polished Diamonds showroom.
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This product has multiple variants. The options may be chosen on the product page
Our stunning Round Brilliant Eternity Diamond Ring White Gold 2.00ct RE1 sparkles across the room. It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. The number of diamonds can vary depending on finger size, and we base this price on size M. Contact usfor more information and personalised service, or visit our Polished Diamonds showroom.
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This product has multiple variants. The options may be chosen on the product page
Our stunning Round Brilliant Eternity Diamond Ring Yellow Gold 2.00ct RE1 sparkles across the room. It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. The number of diamonds can vary depending on finger size, and we base this price on size M. Contact usfor more information and personalised service, or visit our Polished Diamonds showroom.
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This product has multiple variants. The options may be chosen on the product page
The RS1 Asscher Cut Diamond Ring, crafted in luxurious Platinum, features a classic solitaire design with a hidden heart detail. This sophisticated diamond ring lights up the room with coloured flash from the step-cut facets! Customise with certified lab-grown or natural diamonds or coloured gemstones in your choice of precious metal. We can design and adjust any ring style to suit your needs. Visit our showrooms for personal service or order securely online. Contact our expert team to have your questions answered and receive friendly advice.
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This product has multiple variants. The options may be chosen on the product page
Our stunning Round Brilliant Eternity Diamond Ring Platinum RE2 sparkles across the room. The price includes (29x) 2.0mm Round Brilliant Cut Natural Diamonds with a total carat weight of 0.96 (depending on finger size). It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. Contact us for more information and personalised service, or visit our Polished Diamonds showroom.
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This product has multiple variants. The options may be chosen on the product page
The RS1 Asscher Cut Diamond Ring, crafted in beautiful Rose Gold, features a classic solitaire design with a hidden heart detail. This sophisticated diamond ring lights up the room with coloured flash from the step-cut facets! Customise with certified lab-grown or natural diamonds or coloured gemstones in your choice of precious metal. We can design and adjust any ring style to suit your needs. Visit our showrooms for personal service or order securely online. Contact our expert team to have your questions answered and receive friendly advice.
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This product has multiple variants. The options may be chosen on the product page
Our stunning Round Brilliant Eternity Diamond Ring Rose Gold RE2 sparkles across the room. The price includes (29x) 2.0mm Round Brilliant Cut Natural Diamonds with a total carat weight of 0.96 (depending on finger size). It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. Contact us for more information and personalised service, or visit our Polished Diamonds showroom.
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This product has multiple variants. The options may be chosen on the product page
The RS1 Asscher Cut Diamond Ring, crafted in bright White Gold, features a classic solitaire design with a hidden heart detail. This sophisticated diamond ring lights up the room with coloured flash from the step-cut facets! Customise with certified lab-grown or natural diamonds or coloured gemstones in your choice of precious metal. We can design and adjust any ring style to suit your needs. Visit our showrooms for personal service or order securely online. Contact our expert team to have your questions answered and receive friendly advice.
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This product has multiple variants. The options may be chosen on the product page
Our stunning Round Brilliant Eternity Diamond Ring White Gold RE2 sparkles across the room. The price includes (29x) 2.0mm Round Brilliant Cut Natural Diamonds with a total carat weight of 0.96 (depending on finger size). It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. Contact us for more information and personalised service, or visit our Polished Diamonds showroom.
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This product has multiple variants. The options may be chosen on the product page
The RS1 Asscher Cut Diamond Ring, crafted in classic Yellow Gold, features a solitaire ring design with a hidden heart detail. This sophisticated diamond ring lights up the room with coloured flash from the step-cut facets! Customise with certified lab-grown or natural diamonds or coloured gemstones in your choice of precious metal. We can design and adjust any ring style to suit your needs. Visit our showrooms for personal service or order securely online. Contact our expert team to have your questions answered and receive friendly advice.
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This product has multiple variants. The options may be chosen on the product page
Our stunning Round Brilliant Eternity Diamond Ring Yellow Gold RE2 sparkles across the room. The price includes (29x) 2.0mm Round Brilliant Cut Natural Diamonds with a total carat weight of 0.96 (depending on finger size). It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. Contact us for more information and personalised service, or visit our Polished Diamonds showroom.
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This product has multiple variants. The options may be chosen on the product page
The RS1 Cushion Cut Diamond Ring, crafted in luxurious Platinum, features a classic solitaire design with a hidden heart detail. This modern ring style sparkles across the room and looks fantastic. Customise with certified lab-grown or natural diamonds or coloured gemstones in your choice of precious metal. We can design and adjust any ring style to suit your needs. Visit our showrooms for personal service or order securely online. Contact our expert team to have your questions answered and receive friendly advice.
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This product has multiple variants. The options may be chosen on the product page
Our stunning Round Brilliant Eternity Diamond Ring Platinum RE3 looks great with a vintage-inspired but modern design. The price includes (12x) 1.20mm and (6x) 2.00mm Round Brilliant Cut Natural Diamonds with a total carat weight of 0.30. It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. Contact us for more information and personalised service, or visit our Polished Diamonds showroom.
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This product has multiple variants. The options may be chosen on the product page
The RS1 Cushion Cut Diamond Ring, crafted in beautiful Rose Gold, features a classic solitaire design with a hidden heart detail. This modern ring style sparkles across the room and looks fantastic. Customise with certified lab-grown or natural diamonds or coloured gemstones in your choice of precious metal. We can design and adjust any ring style to suit your needs. Visit our showrooms for personal service or order securely online. Contact our expert team to have your questions answered and receive friendly advice.
Select options
This product has multiple variants. The options may be chosen on the product page
Our stunning Round Brilliant Eternity Diamond Ring Rose Gold RE3 looks great with a vintage-inspired but modern design. The price includes (12x) 1.20mm and (6x) 2.00mm Round Brilliant Cut Natural Diamonds with a total carat weight of 0.30. It is available in any diamond shape, carat weight, precious metal, and finger size to suit your needs. We use natural diamonds of GH colour and Si clarity with very good to excellent cut for high-performing sparkles. Contact us for more information and personalised service, or visit our Polished Diamonds showroom.
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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.
