Platinum Round Brilliant Cut Diamond Solitaire Engagement Rings

Celebrate timeless simplicity and unmatched brilliance with our Platinum Round Brilliant Cut Diamond Solitaire Engagement Rings. At ComparetheDiamond.com, we’ve crafted a collection that highlights the beauty of a single, dazzling diamond set in platinum – the ultimate symbol of enduring love and sophistication.

Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-0001

Prices from £1,363 High St. £2,327 Our Price: £1,232
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-9999

Prices from £1,257 High St. £2,127 Our Price: £1,126
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2975

Prices from £1,284 High St. £2,179 Our Price: £1,153
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6159

Prices from £1,293 High St. £2,195 Our Price: £1,162
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6144

Prices from £1,329 High St. £2,263 Our Price: £1,198
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6140

Prices from £1,376 High St. £2,351 Our Price: £1,245
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2231

Prices from £1,322 High St. £2,249 Our Price: £1,191
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6029

Prices from £1,306 High St. £2,219 Our Price: £1,175
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6012

Prices from £1,378 High St. £2,355 Our Price: £1,247
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2964

Prices from £1,291 High St. £2,191 Our Price: £1,160
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6006

Prices from £1,452 High St. £2,495 Our Price: £1,321
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6027

Prices from £1,358 High St. £2,318 Our Price: £1,227
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6017

Prices from £1,431 High St. £2,455 Our Price: £1,300
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2240

Prices from £1,378 High St. £2,355 Our Price: £1,247
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-1939

Prices from £1,518 High St. £2,619 Our Price: £1,387
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-1915

Prices from £1,532 High St. £2,647 Our Price: £1,401
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6147

Prices from £1,543 High St. £2,667 Our Price: £1,412
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6019

Prices from £1,564 High St. £2,707 Our Price: £1,433
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2974

Prices from £1,721 High St. £3,004 Our Price: £1,590
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2970

Prices from £1,692 High St. £2,948 Our Price: £1,561
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2399

Prices from £1,668 High St. £2,904 Our Price: £1,537
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Diamond-Set Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Diamond-Set Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2248

Prices from £1,825 High St. £3,200 Our Price: £1,694
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-1923

Prices from £1,812 High St. £3,175 Our Price: £1,681
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2972

Prices from £1,874 High St. £3,292 Our Price: £1,743
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-1909

Prices from £1,953 High St. £3,441 Our Price: £1,822
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2968

Prices from £1,680 High St. £2,927 Our Price: £1,549
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-6158

Prices from £2,090 High St. £3,701 Our Price: £1,959
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-0100-2293

Prices from £1,738 High St. £3,036 Our Price: £1,607
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
Diamond Solitaire Engagement Ring Plain Polish Band Certified Round Brilliant-Cut Diamond 100% Recycled, Hallmarked Platinum

Diamond Solitaire Engagement Ring
Plain Polish Band
Certified Round Brilliant-Cut Diamond
100% Recycled, Hallmarked Platinum
Design ID: 01-010101

Prices from £1,721 High St. £3,004 Our Price: £1,590
Platinum    Rose Gold    Yellow Gold    White Gold
Metal Options
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Why Choose a Platinum Solitaire Engagement Ring?

A platinum solitaire engagement ring is the epitome of elegance. The simplicity of the solitaire setting lets the diamond take centre stage, showcasing its brilliance without distraction. When paired with a round brilliant cut diamond, the result is a stunning combination of maximum sparkle and timeless design. Platinum’s natural strength, hypoallergenic properties, and bright finish make it the perfect choice for a ring designed to last a lifetime.

Explore Our Platinum Round Brilliant Solitaire Collection

Our Platinum Solitaire Engagement Rings are designed to suit every style. The round brilliant cut diamond, with its 58 expertly crafted facets, is the most popular choice for a solitaire setting due to its exceptional sparkle. Whether you prefer a classic six-prong design or a sleek bezel setting, our collection offers a variety of styles to complement your love story.

Customise Your Dream Solitaire Ring

Your love story is unique, and your ring should reflect that. With our bespoke Ring Maker tool, you can personalise every detail of your platinum solitaire engagement ring. Choose your diamond’s carat weight, clarity, and colour, and pair it with the perfect solitaire setting. Our expert jewellers will craft a one-of-a-kind piece that captures your vision with precision and care.

Certified Quality and Lifetime Assurance

At ComparetheDiamond.com, we are committed to delivering exceptional quality. All our round brilliant cut diamonds are certified by GIA or IGI, ensuring their authenticity and brilliance. Each platinum solitaire ring is hallmarked for authenticity and comes with a lifetime warranty, so you can treasure it for generations to come.

Expert Support for Your Journey

Choosing the perfect engagement ring is a significant moment, and we’re here to make it effortless. Whether you need advice on selecting the ideal diamond or assistance customising your solitaire design, our friendly and knowledgeable team is ready to help. From your first enquiry to the moment your ring arrives, we’re dedicated to ensuring your experience is seamless and memorable.

Shop with Confidence

Enjoy a secure and hassle-free shopping experience at ComparetheDiamond.com. We offer a 30-day return policy, fully insured worldwide shipping, and secure payment options. Every purchase is protected, giving you peace of mind as you find the perfect ring to celebrate your love.

Frequently Asked Questions

The round brilliant cut is designed to maximise sparkle with its 58 facets, making it the most brilliant diamond shape. Its timeless appeal and versatility make it the perfect choice for a solitaire setting.

Platinum is a durable and hypoallergenic metal that enhances the diamond’s brilliance. Its resistance to tarnishing ensures your ring remains as stunning as the day you received it.

Yes, with our bespoke Ring Maker tool, you can choose from various settings, metals and band styles, to create a ring that reflects your personal style.

While round brilliant cuts are the most popular, other shapes such as princess, oval, and emerald cuts also look stunning in solitaire designs, offering unique aesthetics to suit different tastes.

Clean your ring regularly with warm soapy water and a soft brush. Over time, platinum develops a natural patina, which can be polished to restore its original shine.

Absolutely! We offer both lab-grown and mined round brilliant cut diamonds, giving you an ethical and sustainable option without compromising on quality or beauty.

Celebrate your love with the timeless beauty of a Platinum Round Brilliant Cut Diamond Solitaire Engagement Ring. Explore our collection today or contact us via phone, email, chat, or WhatsApp to speak with our expert designers and create a bespoke piece that’s truly yours.

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