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 £833 High St. £1,219 Our Price: £711
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 £934 High St. £1,391 Our Price: £812
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 £900 High St. £1,333 Our Price: £778
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 £830 High St. £1,213 Our Price: £708
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 £934 High St. £1,391 Our Price: £812
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 £840 High St. £1,231 Our Price: £718
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 £1,029 High St. £1,555 Our Price: £907
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 £802 High St. £1,165 Our Price: £680
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 £893 High St. £1,321 Our Price: £771
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 £928 High St. £1,381 Our Price: £806
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 £882 High St. £1,303 Our Price: £760
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 £1,088 High St. £1,656 Our Price: £966
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 £917 High St. £1,363 Our Price: £795
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 £1,048 High St. £1,587 Our Price: £926
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 £1,077 High St. £1,638 Our Price: £955
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 £1,200 High St. £1,848 Our Price: £1,078
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 £932 High St. £1,389 Our Price: £810
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 £951 High St. £1,421 Our Price: £829
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 £1,031 High St. £1,557 Our Price: £909
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 £1,014 High St. £1,529 Our Price: £892
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 £1,140 High St. £1,746 Our Price: £1,018
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 £1,324 High St. £2,060 Our Price: £1,202
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 £1,350 High St. £2,106 Our Price: £1,228
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 £1,387 High St. £2,168 Our Price: £1,265
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 £1,177 High St. £1,808 Our Price: £1,055
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 £1,145 High St. £1,754 Our Price: £1,023
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 £1,234 High St. £1,906 Our Price: £1,112
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 £1,259 High St. £1,950 Our Price: £1,137
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 £581 High St. £787 Our Price: £459
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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