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 .

Platinum Diamond Solitaire Engagement Rings

Drawing together timeless design with modern artistry, our collection of platinum diamond solitaire 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 truly classic design, our collection of solitaire engagement rings are minimal and sleek, perfectly showcasing your centre diamond. From a gently curving oval cut to the striking angles of a princess cut, choosing the diamond shape best suited to your relationship is a great way to make your ring feel personal, so be sure to check out our full range of gemstones. Our designers draw creative inspiration from all over to bring you a diverse range of platinum diamond engagement rings, so explore our full selection of design styles below.

72 rings found

Sort by

Taylor & Hart Eve Round Engagement Ring 360 detail 01

Eve

Round solitaire engagement ring with six eagle claws set in platinum

from US$1,155

Demure

Oval diamond solitaire engagement ring set in platinum

from US$945

Hope

Round diamond four-claw solitaire engagement ring set in platinum

from US$1,015

Whisper

Oval centre hidden halo solitaire engagement ring in platinum

from US$1,300

Hope

Oval diamond four-claw solitaire engagement ring set in platinum

from US$1,015

Hope

Emerald diamond four-claw solitaire engagement ring set in platinum

from US$1,015

Grace

Round diamond solitaire engagement ring set in platinum

from US$1,120

Elysium

Round diamond solitaire engagement ring set in platinum

from US$1,120

Demure

Round diamond solitaire engagement ring set in platinum

from US$945

Demure

Cushion diamond solitaire engagement ring set in platinum

from US$945

Elysium

Oval diamond solitaire engagement ring set in platinum

from US$1,120

Hana

Round diamond solitaire engagement ring with cherry blossom and asymmetrical prongs

from US$1,505

Grace

Oval diamond solitaire engagement ring set in platinum

from US$1,120

Elysium

Emerald diamond solitaire engagement ring set in platinum

from US$1,120

Hope

Pear diamond three-claw solitaire engagement ring set in platinum

from US$1,015

Demure

Radiant diamond solitaire engagement ring set in platinum

from US$945

Elysium

Princess diamond solitaire engagement ring set in platinum

from US$1,120

Hope

Princess diamond four-claw solitaire engagement ring set in platinum

from US$1,015

Taylor & Hart Joy Pear Engagement Ring 360 detail 01

Joy

Pear diamond four-claw solitaire engagement ring set in platinum

from US$1,190

Demure

Emerald diamond solitaire engagement ring set in platinum

from US$945

Purity

Round diamond solitaire bezel engagement ring set in platinum

from US$1,260

Elysium

Cushion diamond solitaire engagement ring set in platinum

from US$1,120

Demure

Princess diamond solitaire engagement ring set in platinum

from US$945

Sage

Round centre hidden halo engagement ring with diamond pavé collar

from US$1,365

Crush

Oval solitaire with clusters of bevelled diamond pavé engagement ring set in platinum

from US$1,855

Hope

Radiant diamond four-claw solitaire engagement ring set in platinum

from US$1,015

Taylor & Hart Joy Round Engagement Ring 360 detail 01

Joy

Round diamond four-claw solitaire engagement ring set in platinum

from US$1,190

Eden

Pear diamond three-claw solitaire engagement ring set in platinum

from US$1,155

Demure

Heart diamond solitaire engagement ring set in platinum

from US$945

Hope

Asscher diamond four-claw solitaire engagement ring set in platinum

from US$1,015

Hope

Heart diamond three-claw solitaire engagement ring set in platinum

from US$1,015

Eden

Princess diamond four-claw solitaire engagement ring set in platinum

from US$1,155

Grace

Pear diamond solitaire engagement ring set in platinum

from US$1,120

Sirius

Cushion diamond solitaire with engagement ring set in platinum

from US$1,680

Demure

Pear diamond solitaire engagement ring set in platinum

from US$945

Demure

Marquise diamond solitaire engagement ring set in platinum

from US$945

1 2 Next Page

View all

Platinum Diamond Solitaire 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’.

When it comes to engagement rings, platinum has always been the most popular choice—accounting for over 60% of the rings we make today. Durable, naturally bright, and low maintenance, this precious metal makes platinum solitaire engagement rings last a lifetime. A platinum band with a unique solitaire ring is a match made in heaven, sure to make any centre diamond look its best for years to come.

There’s nothing that compares to a platinum solitaire engagement ring. Odds are, when you picture a timeless engagement ring this design is what comes to mind. Our collection of diamond solitaire engagement rings feature thoughtful settings and refined bands that all serve to best showcase your centre solitaire diamond. For a ring as timeless as your love and enduring as your bond, you’ve found the one.

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

Platinum Diamond Solitaire Engagement Rings

Eve

Demure

Hope

Whisper

Hope

Hope

Grace

Elysium

Demure

Demure

Elysium

Hana

Grace

Elysium

Hope

Demure

Elysium

Hope

Joy

Demure

Purity

Elysium

Demure

Sage

Crush

Hope

Joy

Eden

Demure

Hope

Hope

Eden

Grace

Sirius

Demure

Demure

Platinum Diamond Solitaire 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