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 Marquise Diamond Engagement Rings

Drawing together timeless design with modern artistry, our collection of rose gold marquise diamond 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. Certain styles determine the overall silhouette and impact of your engagement ring, so take time to consider if a solitaire, pavé, halo, or trilogy design is the one for you. The stunning marquise cut diamond dates back to 18th century France and its elongated elliptical shape is both eye-catching and imbued with romance. Our designers draw creative inspiration from all over to bring you a diverse range of rose gold marquise diamond engagement rings, so explore our full selection of design styles below.

26 rings found

Sort by

Tamora

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

from A$2,619

Tamora

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

from A$2,619

Tamora

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

from A$2,619

Lantana

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

from A$2,679

Nutmeg

Marquise solitaire engagement ring in east-west setting with hidden halo and half eternity band

from A$2,917

Affinity

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

from A$2,917

Demure

Marquise diamond solitaire engagement ring set in 18ct rose gold

from A$1,429

Faith

Trilogy engagement ring with marquise centre diamond and pear diamond sides

from A$2,262

Hope

Marquise diamond six-claw solitaire engagement ring set in 18ct rose gold

from A$1,548

Mirror

Marquise diamond art deco trilogy engagement ring with tapered baguettes

from A$2,441

Purity

Marquise diamond solitaire bezel engagement ring set in 18ct rose gold

from A$1,905

Tamora

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

from A$2,619

Grace

Marquise diamond solitaire engagement ring set in 18ct rose gold

from A$1,726

Taylor & Hart Joy Marquise Engagement Ring 360 detail 01

Joy

Marquise diamond four-claw solitaire engagement ring set in 18ct rose gold

from A$1,846

Allure

Marquise diamond centre and pavé diamond halo engagement ring set in 18ct rose gold

from A$3,214

Lissome

Marquise diamond centre and pavé diamond band engagement ring set in 18ct rose gold

from A$1,905

Sirius

Marquise diamond solitaire bezel engagement ring set in 18ct rose gold

from A$2,560

Dulcet

Marquise diamond centre and fishtail pavé diamond band engagement ring set in 18ct rose gold

from A$2,083

Sonder

Marquise diamond centre and bead-set diamonds engagement ring set in 18ct rose gold

from A$3,155

Flourish

Cushion diamond centre and bezel set diamond band engagement ring set in 18ct rose gold

from A$3,036

Selene

Marquise engagement ring with vintage-inspired bezel set diamonds along the band

from A$2,797

Dove

Marquise solitaire with pavé diamond halo engagement ring set in 18ct rose gold

from A$2,321

Thyme

Marquise solitaire engagement ring with hidden diamond halo and pavé band

from A$2,917

Faith

Trilogy engagement ring with marquise centre diamond and blue sapphire sides

from A$2,262

Damson

Marquise solitaire engagement ring with blue sapphire and diamond ombré pavé

from A$2,143

Affinity

Marquise diamond centre and pear side blue sapphires engagement ring set in 18ct yellow gold

from A$2,917

18k Rose Gold Marquise Diamond 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 engagement rings have a tender and personal touch to them, the perfect symbol for your bond as a couple.

Marquise diamonds bring together the best of an elongated diamond shape and the brilliant facet structure of a round diamond. The result is a diamond that flatters on the finger and catches the light in a mesmerising way, especially when set in 18k rose gold. Marquise diamond engagement rings are uncommon, but that’s what makes them so beautiful. Like the irreplaceable nature of your love, rose gold hexagonal diamond engagement rings have the charm of feeling one of a kind.

Filters

Price

Metal

Ring style

Stone shape

Design style

Design features

18k Rose Gold Marquise Diamond Engagement Rings

Tamora

Tamora

Tamora

Lantana

Nutmeg

Affinity

Demure

Faith

Hope

Mirror

Purity

Tamora

Grace

Joy

Allure

Lissome

Sirius

Dulcet

Sonder

Flourish

Selene

Dove

Thyme

Faith

Damson

Affinity

18k Rose Gold Marquise Diamond Engagement Rings

Safeguarding your privacy

Change your ring selection to this one?

Change your centre gem selection to this one?

Oops! Something went wrong

Filters

Price

Metal

Ring style

Stone shape

Design style

Design features

18k Rose Gold Marquise Diamond Engagement Rings

Tamora

Tamora

Tamora

Lantana

Nutmeg

Affinity

Demure

Faith

Hope

Mirror

Purity

Tamora

Grace

Joy

Allure

Lissome

Sirius

Dulcet

Sonder

Flourish

Selene

Dove

Thyme

Faith

Damson

Affinity

18k Rose Gold Marquise Diamond Engagement Rings

Begin the design process

Please wait a moment...

Safeguarding your privacy

Speak to an expert

Add to cart

Please wait a moment...

Let's get started

Please wait a moment...

Customise further

Please wait a moment...

Why choose a lab-grown diamond?

Why choose a natural diamond?

Sign in to see your designs and quotations