Discover Lab Grown Diamond & Moissanite Engagement Rings
San Francisco, We're Not Far Away
Our San Francisco showroom is set to open this year. Get access to faster resizing, cleaning and polishing services, easy repairs and anything else you may need.
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Diamonds for Your Future
Our lab grown diamonds are 100% Carbon Neutral, certified by Clear Neutral. Choose an ethical lab grown diamond engagement ring that's beautiful, helps the planet and is more affordable.
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Your Story, Our Craft
Tell us your love story, and our in-house jewellers will turn it into the perfect custom ring. Whether you have a design in mind or need some ideas, we'll help you bring your vision to life. Alternatively, build your ring online today with Cullen Jewellery's online engagement ring builder, and choose from a range of stone shapes, metal colours, band types and setting styles.
Custom Engagement RingsReady-To-Ship
Our range of ready-to-ship lab grown diamond and moissanite engagement rings can be found in a range of precious metals, including platinum, 18k yellow gold, 18k rose gold and 18k white gold.
Why Cullen Jewellery
We make fine jewellery to feel good about and to love for a lifetime.
Born in the heart of Melbourne, Australia, Cullen Jewellery has set a new standard within the fine jewellery industry, providing clients around the globe with timeless and environmentally responsible jewellery.
Our engagement rings and fine jewellery feature carbon-neutral lab-grown diamonds and moissanite. Using skill and care, our in-house jewellers combine tradition with beautiful design while being kind to the earth. Each piece is more than special—it’s a sign of love, made the right way to last forever.
Learn More About UsExpert Advice
We provide industry-leading guidance on fine jewellery and in-depth education on lab grown diamonds and moissanite stones, along with the anatomy of an engagement ring.
FAQs
Your questions, answered.
All our rings, including stunning lab grown diamond rings, are made to order and are usually ready in 50 business days. Our collection ranges from laboratory grown diamonds to moissanite, each crafted to perfection.
If you need help selecting from our range of diamond engagement rings or lab grown engagement rings, please contact us here. Our team, experienced in both lab created diamonds and moissanite, will assist you.
Cullen Jewellery offers a free Lifetime Manufacturing Warranty on all our products, including lab grown diamond rings, ensuring peace of mind.
Yes! At Cullen Jewellery, we offer free international shipping on all orders, including those for the perfect diamond engagement ring. Shop online and add your chosen piece to your shopping bag with ease.
Import Duties and Taxes
Most of our orders are sent as DDP (Delivery Duty Paid - this means import duties & taxes are covered). However, there may be cases where you may have to pay local import taxes and duties, which Cullen Jewellery does not cover, as some countries do not allow us to pay them as the sender. For more details, please check our Shipping page or contact your local customs agency.
Our showroom, featuring a range of lab grown diamond rings and moissanite pieces, is open by appointment only. Discover our collection of lab grown diamond engagement rings and moissanite in person or online.
At Cullen Jewellery, we offer free ring sizers for our entire range. Measure your ring size comfortably at home for that perfect fit.
Yes! Lab grown diamonds, also known as laboratory grown diamonds or ethical lab grown diamonds, are chemically identical to mined diamonds or natural diamonds. They offer the same level of beauty and are an extremely popular choice.
A lab grown diamond, unlike a simulant, has the same chemical and physical properties as a mined diamond. They are aesthetically identical to naturally mined diamonds, offering the same fire and brilliance.
The only difference between a mined diamond and a lab grown diamond is their origin. Lab grown diamonds are an ethical and sustainable option, offering the same fire, clarity, and carat weights as mined diamonds.
Lab grown diamonds are a sustainable option, created using advanced technology under high pressure, which is much more ethical than traditional diamond mining methods.
We specialise in lab grown diamond engagement rings. Our collection, available to shop online, ranges in carat weight and design, ensuring you find the perfect diamond for your needs.
Moissanite is a brilliant choice for those seeking an alternative to a lab diamond engagement ring. It offers the same level of clarity and is graded by Australia-based Radiant Beauty to ensure top quality, just like our lab grown diamond collections.
Yes. Due to its similar properties to diamonds (both lab grown and mined or natural diamond rings), moissanite can pass a diamond tester. However, our specialised equipment can distinguish between moissanite and diamonds, ensuring you know exactly what you're purchasing.
Moissanite is not a fake diamond but a gemstone that offers stunning lab grown beauty. It's perfect for those looking for the same level of sparkle and clarity found in diamonds, but at a more accessible price point.
Absolutely not! Due to its diamond-like appearance, many people believe the misconception that moissanite is a fake diamond when it is in fact a high quality, beautiful gemstone in its own right. Moissanite is becoming an increasingly popular choice of stone in engagement rings due to its dazzling beauty, durability, ease of customisation and affordability.
No, moissanite rings are crafted to exhibit a sparkle that, to the naked eye, is akin to that of diamonds. They offer timeless beauty and are an aesthetically identical choice for those who admire the appearance of mined diamonds.
Moissanite retains its sparkle indefinitely, much like our lab grown and rings. Its clarity and carat weight remain intact, ensuring a lifetime of brilliance.
We make it easy to find your ideal moissanite engagement ring. Request a free ring sizer to determine your correct ring size, and browse our wide selection of moissanite engagement rings on our website. To create a custom ring design, schedule an appointment with our expert team, providing your appointment details. Our specialists will assist you with the entire custom design process to ensure you get the perfect ring. A regular price at Cullen Jewellery offers better accessibility and exceptional value compared to other jewellers.
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