Where do our diamonds come from?

Designs in the collection are available in the following diamond and gemstone shapes: round brilliant, cushion, oval, emerald, pear, princess or square, marquise, Asscher, radiant, heart, hexagonal and even antique cuts like rose cut, old mine cut and Old European cut diamonds. We offer both naturally mined diamonds and lab grown diamonds. All of our engagement ring centre diamonds are GIA or IGI graded and certified. While all other diamonds featured in our products aren’t always certified, simply ask your Design Consultant and we can do our best to source you options with certification. In regards to natural diamonds, we source diamonds globally from diamond manufacturers that comply with the United Nations Kimberley Process in order to affirm all of our diamonds are ethically sourced. To learn more about the different sources of diamonds, from lab-grown diamonds to CanadaMark, visit our guide to diamonds .

How do you figure out you or your partner's ring size?

You’ve decided to pop the question and take the first step to spending the rest of your life together, but what ring size is my partner?! We have some invaluable advice for choosing that perfect ring available on our ring size guide – even if you’re planning a surprise proposal.

Do we get inspired by celebrity engagement rings?

Engagement rings are so special because they’re more than just a jewellery purchase. They’re a tangible mark of the intention to get married, while a wedding ring symbolises the union. We understand how sentimentally valuable an engagement is and we love that this symbol of commitment can be so personal to each couple. As designers, we’ve always looked to the high-profile jewellery of celebrities, royals, and cultural icons to kickstart our creativity. And lots of our customers feel the same! Browse through our collection of celebrity engagement ring guides to how you can incorporate some new ideas into a design that suits your price point. Additionally, we’ve collected some of the most popular bespoke designs from our Instagram page into one place so that you can get the design ideas flowing. Browse our ‘As Seen on Instagram’ page here .

18k Rose Gold Oval Diamond Trilogy Engagement Rings

Drawing together timeless design with modern artistry, our collection of rose gold oval diamond trilogy engagement rings offers you an exciting selection of unique rings, allowing you to find a design that speaks to love you share with your partner. A trilogy engagement ring is a timeless symbol of the journey you and your partner have shared as the three gemstones of this ring style represent the past, present, and future. An oval diamond engagement ring is flattering and contemporary, perfect for those who love the curved edges and sparkle of a round cut diamond but want something a little more unique. Our designers draw creative inspiration from all over to bring you a diverse range of rose gold oval diamond engagement rings, so explore our full selection of design styles below.

43 rings found

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Lierre

Oval organic diamond detail engagement ring in 18ct rose gold

from A$2,466

Tamora

Oval centre engagement ring with marquise diamond petals on a knife edge band

from A$2,619

Lierre

Oval organic green sapphire and diamond detail engagement ring in 18ct rose gold

from A$2,466

Tamora

Oval centre engagement ring with marquise green sapphire petals on a knife edge band

from A$2,619

Marula

Oval centre framed by round pink sapphire and diamond clusters engagement ring set in 18ct rose gold

from A$2,917

Thia

Oval centre engagement ring with marquise green sapphires set on a diamond pavé 18ct rose gold band

from A$2,721

Affinity

Oval diamond centre and pear side green sapphire engagement ring set in 18ct yellow gold

from A$2,917

Faith

Trilogy engagement ring with oval centre diamond and pear diamond sides

from A$2,262

Thia

Oval centre engagement ring with marquise green sapphires set in 18ct rose gold

from A$2,382

Luna

Oval diamond centre and half-moon side diamonds engagement ring set in 18ct rose gold

from A$3,512

Lierre

Oval organic sapphire and diamond detail engagement ring in 18ct rose gold

from A$2,466

Marula

Oval centre framed by round blue sapphire and diamond clusters engagement ring set in 18ct rose gold

from A$2,917

Marula

Oval centre framed by round diamond clusters engagement ring set in 18ct rose gold

from A$2,917

Lantana

Oval engagement ring framed by marquise diamond clusters engagement ring set in 18ct rose gold

from A$2,560

Tamora

Oval centre engagement ring with marquise dark blue sapphire petals on a knife edge band

from A$2,619

Tamora

Oval centre engagement ring with marquise teal sapphire petals on a knife edge band

from A$2,619

Thia

Oval centre engagement ring with marquise diamonds set in 18ct rose gold

from A$2,382

Thia

Oval centre engagement ring with marquise diamonds set on a diamond pavé 18ct rose gold band

from A$2,721

Faith

Trilogy engagement ring with oval centre diamond and teal sapphire sides

from A$2,262

Orion

Oval diamond centre trilogy engagement ring set in 18ct rose gold

from A$3,512

Tamora

Oval centre engagement ring with marquise platinum sapphire petals on a knife edge band

from A$3,214

Affinity

Oval diamond centre and pear side diamonds engagement ring set in 18ct yellow gold

from A$2,917

Cascade

Oval centre engagement ring with marquise accent diamonds

from A$3,274

Cascade

Oval centre engagement ring with marquise accent green sapphires

from A$3,274

Divinity

Oval diamond centre and claw-set diamonds engagement ring set in 18ct rose gold

from A$1,905

Lierre

Oval organic ruby detail engagement ring in 18ct rose gold

from A$2,466

Tamora

Oval centre engagement ring with marquise pink sapphire petals on a knife edge band

from A$2,619

Faith

Trilogy engagement ring with oval centre diamond and peach sapphire sides

from A$2,262

Tamora

Oval centre engagement ring with marquise purple sapphire petals on a knife edge band

from A$2,619

Marula

Oval centre framed by round diamond clusters engagement ring set in platinum with an 18ct rose gold band

from A$3,691

Faith

Trilogy engagement ring with oval centre diamond and blue sapphire sides

from A$2,262

Faith

Trilogy engagement ring with oval centre diamond and pink sapphire sides

from A$2,262

Faith

Trilogy engagement ring with oval centre diamond and yellow sapphire sides

from A$2,262

Faith

Trilogy engagement ring with oval centre diamond and purple sapphire sides

from A$2,262

Thia

Oval centre engagement ring with marquise pink sapphires set in 18ct rose gold

from A$2,382

Affinity

Oval centre and pear side diamonds engagement ring set in platinum engagement ring with an 18ct rose gold band

from A$3,691

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18k Rose Gold Oval Diamond Trilogy Engagement Rings

We want the process of finding a ring to be a creative act, one that gets to the heart of what makes your love unique. Our collection of engagement rings features a diverse range of styles, metals, and ring shapes, making it easy for you to feel confident that you’ve found ‘the one’.

18k rose gold has taken the jewellery world by storm in the past decade and this warm—beloved for the contemporary finish that this rich pink metal brings to any piece of jewellery. Rose gold engagement rings offer a warm and romantic aesthetic to any ring design. With a natural rosy hue, 18k rose gold trilogy engagement rings have a tender and personal touch to them, the perfect symbol for your bond as a couple.

Sometimes referred to as a trinity engagement ring or three stone engagement ring, a trilogy engagement rings feature three gemstones or diamonds, each one representing the past, present, and future. It’s their symbolic nature that makes hearts fall for a rose gold trilogy engagement. With three centre stones, a trilogy engagement ring has a bold presence, filled with all the light of your love.

The second most popular diamond shape for trilogy engagement rings is the oval diamond. We adore the way this shape brings all of the curving lines and internal fire of a round diamond, while still offering something unique. Our curated selection of oval diamond trilogy engagement rings are especially flattering as the elongated shape of the oval diamond moves with the natural line and curve of your hand.

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18k Rose Gold Oval Diamond Trilogy Engagement Rings

Lierre

Tamora

Lierre

Tamora

Marula

Thia

Affinity

Faith

Thia

Luna

Lierre

Marula

Marula

Lantana

Tamora

Tamora

Thia

Thia

Faith

Orion

Tamora

Affinity

Cascade

Cascade

Divinity

Lierre

Tamora

Faith

Tamora

Marula

Faith

Faith

Faith

Faith

Thia

Affinity

18k Rose Gold Oval Diamond Trilogy Engagement Rings

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