FAQs

All our rings, including stunning lab grown diamond rings, are made to order and are usually ready in 40 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.

Absolutely! We understand that many of our products are purchased as surprise gifts for events such as an engagement. For this reason, we use subtle packaging that will not give away the contents of the package.

Please let us know if we can help you in any other way to keep your purchase a surprise!

At Cullen Jewellery, we accept payments via direct debit, cash or card. If you are looking for an extended payment plan, we also offer interest-free finance via Humm.

At Cullen Jewellery, we value the craftsmanship and dedication involved in making each unique piece of special occasion jewellery. Therefore, we do not offer refunds/returns or exchanges unless the item is faulty or damaged. Please see our Returns Policy for more information.

Absolutely! At Cullen Jewellery, we offer One Free Resize for engagement and wedding rings to use within the first 12 months of your ring's completion (subject to eligible design style/metal type).

*There are certain resizing restrictions for each ring design. The specific information can be found on the product page of each ring. Read more about resizing.

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.

Lab grown diamonds are an excellent alternative to mined diamonds as they provide much more value. Without sacrificing quality for price, lab grown diamonds will be more affordable than mined diamonds of the same quality and size.

Just like their mined counterparts, every lab created diamond is unique. Grown under the same intense heat and pressure as a mined diamond, a lab grown diamond undergoes the same growth process and may still contain minor internal or surface imperfections like a mined diamond will. This means every lab grown diamond will vary in colour, clarity and cut. Expert gemological labs such as the IGI and GIA evaluate and certify every single lab created diamond using the same strict standards applied to mined diamonds.

Absolutely not! Since lab grown diamonds have the exact same physical and chemical properties as mined diamonds, they are just as durable and scratch-resistant, meaning they will never become cloudy.

Scientists have attempted to grow diamonds in a laboratory since the late 1800s. The first company to successfully produce large quantities of lab grown diamonds was General Electric in the 1950s. However, these were largely created for industrial use and were not suitable to be worn in fine jewellery. Gem quality lab grown diamonds have only been available from the late 1980s.

Yes, lab grown diamonds will pass a diamond tester. Since lab grown diamonds are made of pure carbon and have the same thermal conductivity and chemical properties as real diamonds, they will record a positive test on a diamond tester.

To ensure consistency of certification, every lab created diamond is inspected and certified by a gemological expert at the IGI. Using a very fine and precise laser beam, every lab grown diamond is inscribed with the report number and the words “lab grown”, assuring you of your diamond’s origin and authentic certification. This inscription is invisible to the naked eye and can only be seen under a jeweller’s loupe. In no way will this impact your diamond’s quality or light performance.

Absolutely! All of our lab grown diamonds are evaluated on cut, clarity, colour and carat weight and are IGI or GIA certified. Most of our lab grown diamonds are certified by the leading lab grown gemological institute, IGI. The IGI is the most popular lab-created diamond certifier and is used by most of the lab market, creating a consistency in grading across the lab grown diamond industry. This allows the consumers to easily compare lab grown diamonds and to be assured they’re getting what they’re paying for.

Lab grown diamonds are produced in controlled laboratory environments and do not need to be mined from the earth. Unlike mined diamonds, only lab created diamonds can be 100% conflict-free. It is near impossible to know the origins of a mined diamond and whether unsafe or unethical labour practices were involved in its extraction from the earth.

Lab grown diamonds are the eco-friendly alternative to mined diamonds. Did you know that over 250 tons of ore must be moved just to mine 1 carat of mined diamond? By removing the need for mining, lab grown diamonds reduce the devastating impact on the environment and ensure mined habitats, fauna and ancestral communities were unharmed in their production.

No, we do not sell mined diamonds. At Cullen Jewellery, we are committed to ensuring all of our diamonds come 100% conflict-free. Lab created diamonds are the only diamonds that can be fully traced to their origin, allowing us to deliver ethical, environmentally-friendly jewellery to our clients, every time.

We believe that every couple deserves a ring that is as unique as their love, and our skilled craftsmen take great pride in creating beautiful lab grown diamond rings for special occasions that will be cherished for a lifetime. Lab grown diamonds are identical to mined diamonds, with the same fire scintillation and sparkle. With highly specialised equipment and cutting-edge technology, the necessary conditions (such as extreme pressure) are replicated in a lab to produce a lab grown diamond. Specific trace elements can differ, though they are physically identical.

Our high-quality, certified lab grown diamonds are the perfect choice for an engagement ring. They are conflict-free, eco-friendly, and available in a wide range of shapes and settings. And because they are grown in a laboratory with cutting-edge technology in a sustainable process, they are perfectly uniform in quality and clarity — the closest thing to perfect diamonds. Indeed, they have the same fire and optical properties as a mined diamond formed in the earth’s mantle. When you purchase a Cullen Jewellery diamond engagement ring or wedding band, you can be confident that you are getting a ring that is truly special with a gem certification identifying them as legitimate.

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. Read more

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.

A moissanite diamond does not exist. Despite having a similar appearance to a diamond, a moissanite is a real, beautiful gemstone all its own. First discovered in a meteor crater by Henry Moissan in 1893, moissanite is now produced in labs, making this gem both affordable and ethical. Moissanite stones are bright and eye-catching, with a high clarity grade, colourless beauty and sparkling fire. With a hardness rating of 9.25-9.5, moissanite is incredibly durable and is guaranteed to outlast a lifetime of daily wear. Available in a variety of sizes and shapes, moissanite provides buyers with more freedom for custom designs and can be purchased for the fraction of the price of a diamond of the same size and quality. Read more

At Cullen Jewellery, we believe the best moissanite brand to buy is Radiant Beauty. Radiant Beauty is an Australian company that ensures their moissanite has been expertly crafted and graded and can be traced back to the manufacturer. As our sole source of moissanite gemstones, Radiant Beauty give us the confidence and ability to provide lifetime warranties on all of our stones. When you purchase high-quality branded, Australian made jewellery, you can be confident that your piece will hold strong and sparkle for a lifetime! More about Radiant Beauty

Yes, you can shower with a moissanite ring. However, the more you come in contact with soaps, dirt and chemicals, the faster oils and dirt can build up on the surface of your ring.This can be easily cleaned off but to ensure a longer-lasting sparkle, we recommend avoiding washing dishes or doing heavy housework whilst wearing your ring. Read more about how to care for your moissanite ring

Of course. We only source our moissanite from Radiant Beauty. Radiant Beauty is a respected Australian company that ensures their high-quality moissanite has been expertly graded and can be thoroughly traced back to the manufacturer.Read more

Due to low levels of regulation in the moissanite industry, it is easy for low quality, unbranded stones to flood the market. Though often sold at cheaper prices, these stones come from unknown sources and are vastly inferior in colour and cut. At Cullen Jewellery, we source all of our stones from Radiant Beauty, an Australian company that ensures their moissanite is professionally manufactured, carefully selected and graded by experts.

No, you can't scratch moissanite. As it is one of the most durable substances on earth, moissanite is highly resistant to scratching or breaking. With a hardness rating of 9.25 – 9.5, moissanite is harder than all other gemstones besides diamonds, and can only be scratched by a diamond or another moissanite stone – which is unlikely to occur! Read More

Getting a moissanite engagement ring is one of the best gifts you could ever receive! Though similar to a diamond in appearance, moissanite is a unique, standalone gemstone – Like lab grown diamonds, it is an ethical, sustainable and affordable engagement ring choice. Not only does moissanite have a unique extra sparkle, it is also extremely durable and is suitable for a lifetime of daily wear. The lasting durability, beauty and sustainability of moissanite makes it a popular choice for those who want to make responsible, cost-effective jewellery choices without sacrificing on quality. Read more

A 1 carat moissanite is worth approximately $990 AUD but will vary depending on the cut of your stone. You can find pricing for moissanite loose stones of every shape and size here.

Have you been dreaming of the perfect engagement ring but aren’t sure where to start? Look no further than a unique Cullen moissanite ring. We have a wide selection of moissanite rings with many characteristics, so you can find your dream ring to match your style. The durability of moissanite means you can create the perfect ring that will have the sparkle, fire, and brilliance that lasts forever. Our expert jewellers combine our stunning gems in any shape with beautiful ring settings to capture your vision impeccably. Our free ring sizer lets you know your ring size before scheduling a virtual appointment or visiting our showroom. As a world-leading brand, you can rest assured that you don't have to wait any longer for the modern engagement ring you've been looking for.

We sell a variety of moissanite gems, including oval cut, round brilliant, and other classic shapes and new styles in settings such as pavé and solitaire. Shopping with Cullen Jewellery for yourself or your partner means you can be assured that you will get the dream ring in style, guaranteed. So, schedule your appointment today!

Lab grown sapphires are marvels of modern science, created in controlled environments that replicate the natural processes of mined sapphires. They share the same chemical composition, crystal structure, and physical properties as their mined counterparts. So choosing a lab grown sapphire is definitely the responsible choice!

Our lab grown sapphires are crafted using the Czochralski process. This involves melting aluminium oxide and inserting a rod with a seed crystal. As the rod is gently rotated and pulled, a stunning column of sapphire emerges, ready to be cut, polished and transformed into your next cherished piece.

At Cullen Jewellery, we offer an exquisite palette of lab grown sapphires in blue, pink, purple, and red. Trace elements like iron, titanium, and chromium influence the vibrant hues of each sapphire.

Lab grown sapphires offer brilliant benefits. They are more cost-effective and free from the ethical concerns tied to mining. Plus, they boast fewer inclusions and more consistent colour, making them a responsible choice for conscientious jewellery lovers.

Thanks to their impressive durability, our lab-grown sapphires are perfect for everyday wear. Clean them with warm, soapy water, ultrasonic cleaners, or steam cleaners. To keep them pristine, store them separately to avoid scratches from harder gemstones like diamonds.

Lab grown and mined sapphires are identical twins in terms of chemical composition, crystal structure, and physical properties. The key difference is their origin: lab grown sapphires are born in controlled environments, while mined sapphires are formed over millions of years in the Earth's crust.

Our lab grown sapphires boast a hardness of 9 on the Mohs scale, making them incredibly durable and scratch-resistant—ideal for jewellery that stands the test of time.

Absolutely! Cullen Jewellery offers a stunning range of lab grown sapphires that can be seamlessly incorporated into your existing jewellery designs. Whether you need loose stones or completed pieces, we've got you covered.

Sapphires and rubies are both members of the corundum family. The primary distinction lies in their colour: sapphires typically exhibit blue hues, while rubies are renowned for their rich red shades, courtesy of chromium.

Cullen Jewellery’s lab grown sapphires are meticulously eye-clean, meaning they have no visible inclusions. Available in a variety of vibrant colours, each sapphire is carefully checked by our in-house experts to ensure it meets our highest standards of quality and brilliance.