Radiant Cut Engagement Rings

Striking, elegant and timeless, the radiant cut is a powerful, contemporary choice for those seeking a classic shape with a modern edge. An elegant fusion of the round and emerald cuts, the sparkling brilliance of a radiant cut complements a wide range of settings, including solitaires, halos and vintage-inspired bands. In its rectangular form, the radiant cut displays an optical illusion of elongation, creating a flattering effect on the hand. Known for its elegant geometry and trimmed corners, the radiant cut is a symbol of innovation and creativity.

Take the first step in your forever journey by creating the radiant cut engagement ring of your dreams with our custom ring builder. From concept to completion, experience the ease and freedom of seeing your very own radiant cut design come to life as our knowledgeable client advisors walk alongside you every step of the way.

At Cullen, every radiant cut ring is handcrafted in our Australian workshop using ethically sourced materials and lab grown gemstones. Explore the collection online or begin your journey in-store with a personalized design consultation — whatever the process, we're here to help you cherish your forever love with the ring of your dreams.

Cullen specializes in bespoke radiant cut engagement rings, handcrafted to mark one of life’s most meaningful moments in a style unique to your love.

A beautiful union of contemporary creativity and timeless design, the radiant cut is a stunning choice for the ring of your dreams. With incredible sparkle, a flattering lengthening effect on the hand and exquisitely trimmed corners, a radiant cut diamond engagement ring is the ideal choice for those who value modern innovation and enduring, classic beauty.

Whether you’re searching for a vintage-inspired halo or timeless solitaire , our experienced jewelers and knowledgeable client advisors will guide you through every step of the journey — from concept to completion.

Each ring is made in our Australian workshop using conflict-free and carbon-neutral lab-grown diamonds, as well as sustainable lab-grown moissanite or sapphires, so you can feel confident your ring is as ethical as it is breathtaking.

Need a little guidance? Don’t hesitate to contact us or book an in-person appointment with one of our friendly engagement ring specialists to begin exploring our collection of radiant cut engagement rings available to ship across the United States.

Worldwide Express Shipping No matter where you are in the world, your dream ring will go the distance. We proudly ship our wedding and engagement rings across the United States and internationally, ensuring your ready-to-ship engagement ring arrives safely and swiftly.

We offer free resizing on all engagement rings to ensure the perfect fit, whether you've chosen one of our ready-to-ship engagement rings or something uniquely your own.

Lifetime Warranty Our engagement rings are built to last a lifetime. Each piece is backed by our lifetime manufacturing warranty , giving you complete peace of mind.

Free Ring Customization From unique engagement ring designs to personalized band details, we offer complimentary customization so you can craft a ring that's truly one of a kind.

Handcrafted in Australia Every ring — including our ready-to-ship engagement rings — is designed and handcrafted in our Melbourne workshop with exceptional attention to detail.

Conflict-Free, Sustainable Materials We offer a variety of unique options — from ready-to-ship lab diamond engagement rings to sapphire engagement rings — all ethically lab grown and sustainably sourced.

Carbon Neutral & One Tree Planted Partner We offset the carbon footprint of every order and plant a tree for each ring sold, supporting global reforestation.

Custom Design Specialists Whether you're interested in solitaire oval engagement rings or striking emerald cut engagement rings , our team specializes in creating custom pieces that reflect your personal style.