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Solitaire Lab Grown Diamond Engagement Rings

Crafted by our jewellers with care and precision.

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Solitaire Engagement Rings — Classic Elegance, Shimmering Simplicity

Timeless and instantly recognisable, the solitaire engagement ring is loved for its clean lines and enduring elegance, cementing its place as the most classic setting style of all. Featuring a single centre stone, this classic style allows the gem’s natural beauty and brilliance to shine through. Perfect for those who appreciate minimalism and want to make a statement quietly, solitaire rings suit every diamond shape, from round and oval to princess and pear. They pair beautifully with any precious metal, including yellow gold, rose gold, white gold, or platinum, as well as other coloured gemstones such moissanite and sapphire. 

At Cullen, each solitaire ring is handcrafted using lab grown diamonds, moissanite, and sapphires — always with care and conscious materials. Looking to view our range in the UK? Explore our solitaire collection online, start designing with our interactive ring builder, or connect with our team for a one-on-one consultation.

From Idea to “I Do” — We’re With You Every Step

Cullen specialises in custom-made engagement rings to complement your perfect proposal. We combine the knowledge of experienced jewellers with an exceptional client service team that can help guide you through every step of the engagement ring design process, from concept to completion.

Need help choosing your dream solitaire engagement ring in the UK? Book a virtual or in-person appointment in one of our showrooms to talk to our knowledgeable engagement ring specialists.

Sustainable by nature. Exceptional by design.

Worldwide Express Shipping No matter where you are in the world, your dream ring will go the distance. We proudly ship our solitaire engagement rings UK-wide and internationally, ensuring your custom piece arrives safely and swiftly.

Free Resizing We offer free resizing on all of our engagement rings, including solitaires, ensuring a perfect fit for something uniquely yours.

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

Tailored Ring Customisation From gold solitaire engagement ring designs to personalised details like round claws, we offer an extensive customisation service so you can wear a ring that’s truly one-of-a-kind.

Thoughtfully Designed in Melbourne, Australia All of our rings, including our diamond solitaire engagement rings, are crafted by our expert jewellers with exceptional attention to detail.

Conflict-Free, Consciously Crafted Our solitaire diamond engagement rings are crafted with sustainably sourced metals and lab grown gemstones, giving you the confidence that your made-to-order ring is responsibly made with care for the planet and your values.

Carbon Neutral Gemstones & Trees For The Future We offset the carbon footprint of all of our gemstones and plant a tree for each ring sold, supporting global reforestation.

Custom Design Specialists Whether you're dreaming of an elegant trellis sapphire engagement ring or a minimalist oval solitaire, our team specialises in creating custom ring designs for your forever ring.

Looking for a specific style? Choose from our collections below:

A solitaire engagement ring features a single center stone, designed to let its natural beauty and brilliance take the stage. It's a timeless style that’s both simple and elegant, perfect for those who appreciate clean, refined design.

Solitaire rings are loved for their enduring appeal and versatility. With the focus solely on the center stone itself, it can be a beautiful reflection of simplicity and minimalist style. Read more about solitaires here.

Solitaire engagement ring settings complement every gemstone shape beautifully, from classic round and princess cuts to oval, pear, emerald, and more. Each shape brings its own charm to this classic style.

Absolutely! We specialise in custom made engagement rings. We’re here to help you create a piece that’s personal and meaningful. From choosing your stone to selecting the perfect setting, our engagement ring specialists can guide you every step of the way. 

Our solitaire rings can be crafted in yellow gold, rose gold, white gold, or platinum. Each metal offers its own unique tone, allowing you to tailor the look to your personal taste. Check out our precious metals guide here.

Yes, solitaire rings are designed to be worn and enjoyed every day. With proper care and thoughtful setting options, they offer both beauty and durability for a lifetime of wear.

Regular gentle cleaning and occasional professional check-ups will help keep your ring sparkling. We recommend using a soft brush and mild soap, and storing it safely when not in use. For more information find our ring care guide here.

Solitaire engagement rings are available at a range of price points depending on your chosen gemstone, precious metal, and design details. Contact us or book a consultation to discuss options with our friendly team to suit your budget.

Yes, Cullen offers one complimentary resizing within the first 12 months of your ring’s completion, subject to the style and metal type. You’ll find specific sizing details on each product page and more information on our resizing policy here.