The world’s most coveted cut — for good reason
The Beauty of the Round Brilliant Cut
The round brilliant cut is engineered for maximum sparkle. With 58 precisely angled facets, the cut is mathematically designed to reflect and refract light with extraordinary intensity. Its balanced proportions create a symmetrical, radiant glow unmatched by any other shape. Universally flattering and eternally stylish, the round cut has remained the gold standard of engagement rings for over a century — a symbol of love in its purest and most luminous form.
Lab-Grown Diamond or Moissanite — The Choice Is Yours
Diamond Lab gives you the freedom to choose between a certified lab-grown diamond or our premium moissanite for every round engagement ring. Lab-grown diamonds offer the same optical and structural properties as mined diamonds, displaying classic fire and durability. Moissanite delivers exceptional brilliance and clarity — often appearing even more fiery than diamond. Both are sustainable, ethically crafted, and hand-selected for the round cut’s signature radiance.
Iconic silhouettes designed to highlight the round cut’s brilliance.
Signature Round Engagement Ring Styles
Our Round Collection features refined, meticulously crafted designs that showcase the cut’s timeless sparkle:
- Round Solitaire: The purest expression of elegance and light, beautifully balanced.
- Round Hidden Halo: A soft glow of sparkle beneath the crown for delicate radiance.
- Round Cathedral: An elevated profile that enhances light flow and presence.
- Round Three-Stone: A symbolic trio celebrating past, present, and future.
- Round Bezel: Smooth, contemporary framing that blends security with sleek sophistication.
Each style enhances the round cut’s unmatched brilliance while reflecting your individual aesthetic.
The Art of Customisation
A round brilliant cut offers endless possibilities for bespoke design. Our team will help you choose the ideal stone size, band width, setting height, and prong style to harmonise with your lifestyle and vision. Whether you desire a delicate modern silhouette or a bold, timeless statement piece, we’ll create a ring that feels deeply personal — shaped by your imagination and our craftsmanship.
Design Your Own Ring
Begin your bespoke journey and create a round engagement ring crafted exclusively for you.
Australian Craftsmanship
Each Diamond Lab ring is handcrafted in Australia by jewellers who specialise in precision and refined finishing. From prong alignment to final polish, every step is completed with meticulous care to ensure your round ring reflects the highest standards of luxury. It’s this dedication to detail that transforms each piece into a lifelong treasure.
Visit Our Showroom
Experience our craftsmanship firsthand and explore our full Round Collection in person.
Brilliant for life — supported with care that lasts.
Lifetime Care & Promise
Every Diamond Lab ring is backed by our Lifetime Manufacturing Warranty, covering craftsmanship and setting integrity. We also provide professional polishing, resizing, and inspection services to ensure your round engagement ring remains brilliant through every chapter of your life.
Everything you need to know about the round brilliant cut.
Round-Specific FAQs
Do round diamonds sparkle the most?
Yes. The round brilliant cut is mathematically designed for maximum sparkle, offering unmatched fire and brilliance.
Do round diamonds look bigger than other shapes?
Round stones appear slightly smaller per carat compared to elongated shapes, but they offer the brightest overall light performance.
What is the ideal diamond or moissanite ratio for round cuts?
Round cuts are always symmetrical with a 1:1 ratio — but proportions like table size and depth influence brilliance, which our gemologists help you optimise.
Are round cuts good for active lifestyles?
Yes. Their symmetrical shape supports secure settings like claw, bezel, and cathedral, making them excellent for everyday wear.
Do round engagement rings suit all hand shapes?
Absolutely. The round shape is universally flattering and looks balanced on every finger.
Book an Appointment – Personalised Jewellery Consultation
Experience a tailored consultation to find the perfect moissanite or lab-grown diamond jewellery. Whether you need guidance on custom designs, stone selection, or settings, our experts are here to help. Book your appointment today and bring your vision to life.
