Trilogy Engagement Rings

Brought to life by our in-house jewelers.

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Trilogy Engagement Rings — For Love That Transcends Time

Trilogy engagement rings, also known as three stone rings, are more than just a beautiful piece of jewellery. Known for their symbolism, each of the three stones represents a chapter in a couple’s journey: the past they've cherished, the present they share, and the future they’re building together. This profound meaning makes trilogy rings an especially fitting choice for modern proposals and meaningful milestones alike. With design flexibility that allows for various centre stone shapes, gemstone pairings, and band types, this timeless style effortlessly bridges classic elegance and contemporary flair.

At Cullen, we believe that creating a trilogy diamond ring should be as memorable as the ring itself. Our collaborative design experience invites couples to bring their vision to life, crafting a unique masterpiece that captures their story with care and creativity. Begin your journey with our engagement ring builder or book a consultation to create a piece that’s truly yours.

Let Your Love Shine Through Every Stone

Cullen specialises in custom-made engagement rings to complement your perfect proposal. We combine the knowledge of experienced in-house jewellers and 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 trilogy engagement ring in Australia? Book a virtual or in-person appointment at our showroom to talk to one of our friendly engagement ring specialists.

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

A trilogy ring represents a couple’s journey — honouring their past, celebrating their present, and looking forward to their future together.

Yes, both terms describe the same concept: a ring featuring three stones, each rich with meaning.

Absolutely. Their meaningful symbolism and versatile design make them a lasting favorite among couples today.

Absolutely. Many people mix gemstones—like sapphires or coloured diamonds — with traditional centre stones to create something deeply personal and truly unique.

Oval trilogy engagement rings are especially sought after for their elegant elongation, though most shapes work beautifully in this setting, including emerald, brilliant, and cushion cuts.

Yes, trilogy rings are often created with lab grown diamonds for a more sustainable and responsible choice.

Not at all. Most trilogy rings feature a larger centre stone, flanked by slightly smaller side stones for contrast and balance.

It depends. While there are more stones involved, the overall price comes down to the size, the 4Cs of diamond quality, and choice of gemstones.

Yes. When crafted with quality materials and secure settings, trilogy rings are durable enough for daily wear.

Absolutely! Visit our custom designs page to explore the process and easily customize your perfect three stone ring online or in person.

Yes, we offer complimentary resizing for all our engagement rings. If your ring doesn't fit perfectly, simply contact us, and we'll adjust it to ensure a comfortable fit.

All gold and platinum jewellery from Cullen comes with a lifetime manufacturing warranty. This warranty covers any defects in materials or workmanship, giving you peace of mind that your ring is crafted to the highest standards.

Bridget Emerald Trilogy - 18k Yellow Gold

Bridget

Emerald Trilogy

Bridget is a classic emerald trilogy design featuring a striking emerald cut centre stone and two tapered baguette side stones seated in a low basket setting.

Select priority crafting and order by 12 November to secure your engagement ring by Christmas.

Days

Hours

Minutes

Seconds

Your Setting

Start by selecting your stone, metal and ring size. Unsure of the size? Here are some handy tips to guide you.

Don't know your ring size? Request a free sizing kit here.

Your Gemstone

Select your stone preferences to see recommended options.

Engraving

Add an optional personal touch — type your message and choose a font to engrave names, dates or notes.

15/15 characters (+55.00 AUD)

Timeline

If you require your ring sooner, we have priority crafting options available. Select these options from the dropdown below.

Please select a ring size

Lifetime Warranty

Free Resizing

Free Express & Insured Shipping

Shipped Discretely

Finance Available

One Tree Planted

Avg. No. Side Stones	2*
Avg. Carat Total Weight	0.46*
Average Band Width	2.3mm
Center Stone Size	11x8mm - 2.00ct**

* The average carat total weight and number of stones is based on a ring of size M.

** Relates to size of center stone shown in product images. Center stone size may vary in lifestyle images and videos.

This ring can be resized up to 3.5 sizes up or down

Cullen Jewellery offers free express shipping for all Australian orders and for international orders over 500 AUD. 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

Consultation desk in Cullen Jewellery showroom

Engagement Ring Advice

Lab Grown Diamond Advice

Moissanite Advice

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. 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.

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.