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  • Natural Diamond Engagement Rings Classic Cushion Cut in 18kt White Gold

    SKU: DR5090

    AUD $31,500.00 incl. GST

    Looking for timeless elegance and everlasting sparkle? Our natural diamond engagement rings deliver exactly that. This show-stopping design features a radiant cushion-cut natural diamond framed by a shimmering halo of round brilliant diamonds—all set in luxurious 18kt white gold. It’s the perfect way to celebrate your forever love with a ring that speaks volumes.

    Sparkle Meets Sophistication: Cushion Cut Diamond Engagement Ring

    Why do cushion-cut natural diamond engagement rings never go out of style? Their soft, rounded edges and exceptional fire make them both classic and modern. This standout piece showcases a 2.01ct cushion-cut natural diamond, graded F colour and SI1 clarity with a GIA certificate. That means certified brilliance, verified quality, and lasting peace of mind.

    The centre stone sits within a halo of round brilliant diamonds, with even more dazzling accents flowing along the 18kt white gold band. Every gem is positioned to catch the light and highlight the cushion centre, drawing admiration from every angle.

    Features:

    • Gemstone: 2.01ct Cushion Cut Natural Diamond (F/SI1, GIA Certified)
    • Accent Stones: Round Brilliant Cut Natural Diamonds, pavé-set
    • Metal: 18kt White Gold

    Every ring we craft aims to become a future heirloom, telling your love story in the most radiant way possible.

    Pair It with Timeless Jewellery Staples

    Want the complete bridal look? Pair this stunner with our diamond tennis bracelets for a seamless, sophisticated aesthetic.

    You can also book an appointment to meet with our diamond experts in-store, explore custom settings, or find the perfect size.

    For daily inspiration and real-life sparkle, follow us on Instagram and see how others wear their Ernesto Buono diamond rings.

    Why Choose This Cushion Cut Natural Diamond Ring?

    At Ernesto Buono, we handpick each GIA-certified diamond to meet the highest standards of beauty, brilliance, and ethical sourcing. We craft every ring in solid 18kt gold, with meticulous attention to detail. This cushion cut design delivers maximum sparkle and timeless sophistication—perfect for proposals, anniversaries, or personal milestones.

    Curious to see it up close? Book your appointment and experience the brilliance firsthand.

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    AUD $31,500.00 incl. GST

    Buy Now Pay Later

    With

    Specifications
    • Gemstone: Diamond
    • Shape: Cushion Cut, Round Brilliant Cut
    • Centre Stone Shape: 1 Cushion Cut
    • Centre Stone Weight: 2.01 Ct
    • Diamond quantity: 58 Round Cut
    • Total weight: 0.98 Ct
    • Diamond Colour: F
    • Diamond Clarity: SI
    • Certification: GIA Laboratory
    • Origin: Hand made in Australia
    • Other Specification:

      Natural Diamonds

    Diamond Care

    At Ernesto Buono Jewellery, we appreciate your purchase. To help you get the most out of your design, we extend your experience with a complimentary lifetime cleaning service.

    When you visit one of our stores through the years, we can provide your beloved Ernesto Buono jewellery with a professional clean to help you get the most out of your piece.

    Our Diamonds

    When shopping with Ernesto Buono Jewellery, we only offer the best for our customers, including the quality of materials. We sell both natural and lab-grown diamond jewellery. For the majority of our jewellery, including our engagement rings, we rely on GIA or IGI graded diamonds. We will always clearly state otherwise if we are using anything else.

    This doesn’t only guarantee the quality but also the authenticity of the sourced stones. For proof of purchase, our engagement rings come with the relevant certificates.

    Free Shipping

    All purchases come with complimentary free shipping on orders Australia-wide. Our shipping is secure and insured. We ship items within 2-4 business days depending on stock availability.

    All Made-to-Order products will be shipped anywhere from 14-25 days from your order being placed.

    Read our full Shipping & Delivery Policy

    Secured Payments

    We only use secure payment processes so you can shop with peace of mind. We also have finance options available through Zip Pay.

    Hand Crafted

    Ernesto Buono Jewellery is proud to offer the expertise of our in-house master jewellers.

    30-day Guarantee

    We will exchange or give your money back with our free 30-day exchange*. We also offer free resizing if required, however, the responsibility of postage associated with resizing lies with the customer.

    All items listed on our website are available in standard sizes and diamond specifications. However, should you require a particular size, metal or diamond specification not available, we offer the option to customise and create the item to your requirements.

    *In instances where the item specified is unavailable and customisation is required, kindly note that crafting these items to order requires additional time. It’s important to also note that all custom orders are non-refundable due to their personalised nature. We are unable to accept returns or issue refunds on custom-made-to-order items.

    Read our full Returns & Refund policy

    Fast, Free Shipping Fast, Free Shipping
    Secure & Insured | 30 Day Returns For Online Purchases*
    Order now and your package will ship in 2-4 business days*.
    * Depending on customisation required and stock availability.
    Read our full terms and condtions.

    FAQs About Natural Diamond Engagement Rings

    What makes cushion cut diamonds special for engagement rings?

    Cushion cut diamonds combine the timeless appeal of round cuts with a soft, square shape that exudes vintage charm. Their large facets maximise brilliance, giving off a romantic glow that makes them ideal for engagement rings. While round cuts are known for sparkle, cushion cuts offer a deeper, richer fire—perfect if you want something a bit unique yet traditional. Plus, the slightly curved corners make them more durable than sharp-cornered shapes like princess cuts. Whether set solo or with a halo, cushion cut diamonds turn heads without trying too hard.

    Are all diamonds in your engagement rings natural?

    Yes, absolutely. At Ernesto Buono, we exclusively use natural diamonds—no lab-grown stones here. Every diamond we set is responsibly sourced and GIA-certified to ensure authenticity, ethical mining practices, and high quality. When you buy a natural diamond engagement ring from us, you’re investing in a gem formed by nature over millions of years. That’s not just jewellery—it’s history, romance, and legacy wrapped into one sparkling stone.

    Can I customise this engagement ring design?

    Definitely! Our team loves creating bespoke pieces. If you want to change the centre stone shape, upgrade the diamond, or modify the metal, we’ll work with you to bring your vision to life. You can start by booking an appointment at our boutique and discussing your preferences with our expert jewellers. Customising doesn’t just make it personal—it makes it unforgettable.

    How do I care for my diamond engagement ring?

    Caring for your ring keeps it looking as stunning as the day you got it. Clean it gently with warm soapy water and a soft brush to remove dirt and oil buildup. Avoid harsh chemicals and remove it during heavy-duty tasks or gym workouts. We also recommend professional cleaning every 6–12 months. At Ernesto Buono, we offer ring maintenance and cleaning services to keep your sparkle strong for years to come.

    Is this engagement ring suitable for everyday wear?

    Absolutely! We craft every ring with wearability in mind. The secure setting, solid 18kt gold, and expert craftsmanship ensure durability, even with daily use. Just be mindful of the usual wear and tear—rings are jewellery, not tools. But when properly cared for, this cushion cut natural diamond ring will remain your everyday reminder of love, commitment, and style.

    Why choose Ernesto Buono for natural diamond engagement rings?

    We stand apart by focusing on craftsmanship, ethical sourcing, and unmatched customer experience. Our diamonds are handpicked, our gold is 18kt solid, and every ring reflects passion and artistry. We also offer one-on-one guidance to help you find or design your dream piece. Whether it’s your first diamond or an upgrade, you’ll feel confident knowing you’ve chosen quality, authenticity, and a jeweller who truly cares. Don’t just shop—experience love through luxury with Ernesto Buono.

     

    600+ 5 Star
Google Reviews

    600+ 5 Star
    Google Reviews

    Free Secure &
Insured Shipping

    Free Secure &
    Insured Shipping

    Free Ring
Resizing

    Free Ring
    Resizing

    Life Time Cleaning & After Care Support

    Life Time Cleaning
    & After Care Support

    Live Customer Support
Email, Phone or Chat

    Live Customer Support
    Email, Phone or Chat

    Zip Money
& Finance Options

    Zip Money
    & Finance Options

    Can’t find what you like? Did you know that you can customise your own engagement ring or send us photo of what you like and we can make it for you?

    Meet our Jewellers and Designers

    Meet our team

    • Ernesto

      Ernesto

      CEO Jewellery Designer

    • Angelina

      Angelina

      Store Manager

    • Maria

      Maria

      Diamonds Specialist

    • Steff

      Steff

      Jewellery Designer

    • Silvana

      Silvana

      Jewellery Designer

    • Hind

      Hind

      Jewellery Designer

    Google Map Terrain

    Very smooth and easy experience dealing with Ernesto. He melted my old gold and custom made me a necklace that turned out exactly how I wanted it and to great quality. Highly recommend.

    StarsStarsStarsStarsStars

    - Diab Finianos

    The best and most honest jeweler in Sydney , Ernesto is a pleasure to deal with and so are all his staff. I highly recommend Ernesto and his team for quality service and jewellery.

    StarsStarsStarsStarsStars

    - Steve

    Ernesto is the best person to deal with. He will assist and help you with anything possible and he is very easy going with the best prices and always looks after his clients. Highly recommend.

    StarsStarsStarsStarsStars

    - Matthew Khouchaba

    Ernesto and Maria have always provided me with the best service and quality jewelry for years. Highly recommend, best in the business.

    StarsStarsStarsStarsStars

    - Jeanpaul Maugeri

    Always a pleasure to deal with Maria and Ernesto bought both the wedding ring and band from here great quality and great deal thankyou again

    StarsStarsStarsStarsStars

    - Sam and Sarah

    I have to say best dicision I ever made. Ernesto was so helpful and if I could give him more than five stars I would.

    StarsStarsStarsStarsStars

    - Norman Ghannoum

    Ernesto Buono Fine Jewellery

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