 
 
Sapphire Engagement Rings
Brought to life by our in-house jewellers.
Engagement Rings — The Start of Your Forever.
At Cullen, we recognize the importance of finding an engagement ring that reflects your style and the unique beauty of your relationship.
Using ethically sourced materials and lab-grown gemstones, every Cullen engagement ring is handcrafted in our Australian workshop by our in-house jewellers. Whether you prefer a solitaire, halo, vintage-inspired or an entirely unique design, our wide variety of existing styles and specialized custom design process ensures there is a perfect fit for everyone.
Explore the collection online or begin your journey in one of our showrooms with a personalized design consultation — whatever the process, we're here to help you start your forever with the ring of your dreams.
Find Your Perfect Engagement Ring with Cullen
Cullen specializes in unique engagement rings, handcrafted to mark one of life’s most meaningful moments in a style unique to your love.
Our extensive range of existing engagement ring styles and personalized custom design process enable you to explore, envision and create an engagement ring that is both long-lasting and personal to your love story.
Whether you’re specifically seeking emerald cut engagement rings or you’re more broadly interested in diamond engagement rings, our experienced in-house jewellers and warm, knowledgeable client service team will guide you through every step of the journey — from your first consultation to the final polish.
Each ring is made in our Australian workshop using conflict-free, sustainable lab-grown diamonds, moissanite, or sapphires, so you can feel confident that your ring is as ethical as it is exquisite to look at.
With a wide variety of styles ranging from simple engagement rings to more elaborate designs, there is a perfect fit for everyone.
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 designing your dream piece.
Looking for a specific style? Choose from our collections below:

Emerald - Royal Purple
Colour: Royal Purple
Clarity: Eye Clean
Origin: Lab Grown
Lifetime Warranty
Free Resizing
Free Express & Insured Shipping
Shipped Discretely
Finance Available
One Tree Planted
Cullen Jewellery offers free express shipping for all Australian orders and for international orders over 550 CAD. Every order is sent via insured express post, ensuring your special purchase arrives safely.
Delivery Time Estimates (once your order is completed)
Australia: 2-5 Business Days
New Zealand: 2-5 Business Days
USA: 6-10 Business Days
Rest of the World: 7-10 Business Days
 
 
Super informative, supportive and individualised service. Cannot recommend it more! We had no idea walking in but left certain of our choice. Thank you, Cullen!
 
 
Your Diamonds, 
Truly Carbon Neutral
 Cullen Jewellery's selection of lab grown diamonds is certified 100% Carbon Neutral by Clear Neutral, an authority in carbon neutral certification. Embrace a brilliant, sustainable tomorrow by choosing our lab grown diamonds today.
Learn About Clear NeutralOur Philanthropy Partners
 
  
  
  
  
 
 
  
 Need help finding the perfect ring? 
 Book a time to visit our showroom to get assisted
FAQs
Your questions, answered.
Crafting of your ring typically takes 50 business days, with expediting options available if you need it sooner. The exact completion date can be conveniently found on each product page. Please note that shipping is not included within this date and you can find all our shipping information here. For all timeframe information please visit our crafting timeframes page.
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 Lifetime Manufacturing Warranty on all our rings, including engagement, wedding and fashion rings, giving you confidence and peace of mind with every purchase. For all other fine jewellery pieces, such as earrings, chains, pendants, bracelets and more, we provide a 2-Year Manufacturer Warranty. View our full warranty details here here.
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 (Melbourne only) 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.
