Ladies Platinum Engagement Rings

Explore our stunning collection of women’s platinum engagement rings and find an opulent array of sparkling diamonds, classic aesthetics and beautiful finishes. Versatile enough to be paired with any outfit, our platinum engagement rings for women make an ideal choice as their elegance is truly timeless. Our expertly crafted selection features a wide variety of new and pre-owned styles, along with an array of gemstone shapes and sizes for you to find your perfect fit. We can also offer you the best wedding ring to match, so browse our extensive range of ladies platinum jewellery and let us take care of the details.
216 Items
2.14ct Platinum Emerald Diamond Engagement Ring - F-H/VS2
2.14ct Platinum Emerald Diamond Engagement Ring - F-H/VS2
2.14ct Platinum Emerald Diamond Engagement Ring - F-H/VS2
2.14ct Platinum Emerald Diamond Engagement Ring - F-H/VS2
2.14ct Platinum Emerald Diamond Engagement Ring - F-H/VS2
2.14ct Platinum Emerald Diamond Engagement Ring - F-H/VS2
2.14ct Platinum Emerald Diamond Engagement Ring - F-H/VS2
2.14ct Platinum Emerald Diamond Engagement Ring - F-H/VS2
Miltons Diamonds
2.14ct Platinum Emerald Diamond Engagement Ring - F-H/VS2
£1,595.00
950 Platinum Diamond Twist Engagement Ring - Size I - 0.30ct
950 Platinum Diamond Twist Engagement Ring - Size I - 0.30ct
950 Platinum Diamond Twist Engagement Ring - Size I - 0.30ct
950 Platinum Diamond Twist Engagement Ring - Size I - 0.30ct
950 Platinum Diamond Twist Engagement Ring - Size I - 0.30ct
950 Platinum Diamond Twist Engagement Ring - Size I - 0.30ct
950 Platinum Diamond Twist Engagement Ring - Size I - 0.30ct
Miltons Diamonds
950 Platinum Diamond Twist Engagement Ring - Size I - 0.30ct
£595.00
950 Platinum Diamond Engagement Ring - Size I½ - 0.62ct
950 Platinum Diamond Engagement Ring - Size I½ - 0.62ct
950 Platinum Diamond Engagement Ring - Size I½ - 0.62ct
950 Platinum Diamond Engagement Ring - Size I½ - 0.62ct
950 Platinum Diamond Engagement Ring - Size I½ - 0.62ct
Miltons Diamonds
950 Platinum Diamond Engagement Ring - Size I½ - 0.62ct
£1,895.00
950 Platinum Princess Diamond Engagement Ring - Size J½ - 0.42ct
950 Platinum Princess Diamond Engagement Ring - Size J½ - 0.42ct
950 Platinum Princess Diamond Engagement Ring - Size J½ - 0.42ct
950 Platinum Princess Diamond Engagement Ring - Size J½ - 0.42ct
950 Platinum Princess Diamond Engagement Ring - Size J½ - 0.42ct
Miltons Diamonds
950 Platinum Princess Diamond Engagement Ring - Size J½ - 0.42ct
£650.00
950 Platinum Certified Diamond Engagement Ring - Size N - 1.02ct
950 Platinum Certified Diamond Engagement Ring - Size N - 1.02ct
950 Platinum Certified Diamond Engagement Ring - Size N - 1.02ct
950 Platinum Certified Diamond Engagement Ring - Size N - 1.02ct
Miltons Diamonds
950 Platinum Certified Diamond Engagement Ring - Size N - 1.02ct
£5,950.00
950 Platinum Diamond Engagement Ring - Size L½ - 0.60ct
950 Platinum Diamond Engagement Ring - Size L½ - 0.60ct
950 Platinum Diamond Engagement Ring - Size L½ - 0.60ct
950 Platinum Diamond Engagement Ring - Size L½ - 0.60ct
950 Platinum Diamond Engagement Ring - Size L½ - 0.60ct
Miltons Diamonds
950 Platinum Diamond Engagement Ring - Size L½ - 0.60ct
£1,295.00
950 Platinum Diamond Engagement Ring - Size M - 0.42ct
950 Platinum Diamond Engagement Ring - Size M - 0.42ct
950 Platinum Diamond Engagement Ring - Size M - 0.42ct
950 Platinum Diamond Engagement Ring - Size M - 0.42ct
950 Platinum Diamond Engagement Ring - Size M - 0.42ct
Miltons Diamonds
950 Platinum Diamond Engagement Ring - Size M - 0.42ct
£995.00
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950 Platinum Diamond Engagement Ring - Size H - 0.83ct
950 Platinum Diamond Engagement Ring - Size H - 0.83ct
950 Platinum Diamond Engagement Ring - Size H - 0.83ct
950 Platinum Diamond Engagement Ring - Size H - 0.83ct
950 Platinum Diamond Engagement Ring - Size H - 0.83ct
950 Platinum Diamond Engagement Ring - Size H - 0.83ct
950 Platinum Diamond Engagement Ring - Size H - 0.83ct
Miltons Diamonds
950 Platinum Diamond Engagement Ring - Size H - 0.83ct
£1,495.00
950 Platinum Diamond Engagement Ring - Size M - 1.03ct
950 Platinum Diamond Engagement Ring - Size M - 1.03ct
950 Platinum Diamond Engagement Ring - Size M - 1.03ct
950 Platinum Diamond Engagement Ring - Size M - 1.03ct
950 Platinum Diamond Engagement Ring - Size M - 1.03ct
Miltons Diamonds
950 Platinum Diamond Engagement Ring - Size M - 1.03ct
£4,895.00
950 Platinum Diamond Engagement Ring - Size L - 1.30ct
950 Platinum Diamond Engagement Ring - Size L - 1.30ct
950 Platinum Diamond Engagement Ring - Size L - 1.30ct
950 Platinum Diamond Engagement Ring - Size L - 1.30ct
950 Platinum Diamond Engagement Ring - Size L - 1.30ct
Miltons Diamonds
950 Platinum Diamond Engagement Ring - Size L - 1.30ct
£3,250.00
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
Miltons Diamonds
Ladies GIA Certified 0.55ct Diamond Platinum Ring - Colour F
£1,725.00
Ladies Platinum Certified 1.09ct Diamond Engagement Ring
Ladies Platinum Certified 1.09ct Diamond Engagement Ring
Ladies Platinum Certified 1.09ct Diamond Engagement Ring
Ladies Platinum Certified 1.09ct Diamond Engagement Ring
Ladies Platinum Certified 1.09ct Diamond Engagement Ring
Ladies Platinum Certified 1.09ct Diamond Engagement Ring
Ladies Platinum Certified 1.09ct Diamond Engagement Ring
Miltons Diamonds
Ladies Platinum Certified 1.09ct Diamond Engagement Ring
£3,895.00
Authenticity, Guaranteed.
Ladies Platinum 0.94ct Diamond Solitaire Engagement Ring - VS1/G
Ladies Platinum 0.94ct Diamond Solitaire Engagement Ring - VS1/G
Ladies Platinum 0.94ct Diamond Solitaire Engagement Ring - VS1/G
Ladies Platinum 0.94ct Diamond Solitaire Engagement Ring - VS1/G
Ladies Platinum 0.94ct Diamond Solitaire Engagement Ring - VS1/G
Ladies Platinum 0.94ct Diamond Solitaire Engagement Ring - VS1/G
Miltons Diamonds
Ladies Platinum 0.94ct Diamond Solitaire Engagement Ring - VS1/G
£4,950.00
Entwined Engagement Ring - 18ct White Gold & 0.50ct Diamond
Entwined Engagement Ring - 18ct White Gold & 0.50ct Diamond
Entwined Engagement Ring - 18ct White Gold & 0.50ct Diamond
Entwined Engagement Ring - 18ct White Gold & 0.50ct Diamond
Entwined Engagement Ring - 18ct White Gold & 0.50ct Diamond
Entwined Engagement Ring - 18ct White Gold & 0.50ct Diamond
Entwined Engagement Ring - 18ct White Gold & 0.50ct Diamond
Shaun Leane
Entwined Engagement Ring - 18ct White Gold & 0.50ct Diamond
£7,800.00
Platinum Certified Diamond Engagement Ring - 2.32ct - Size N
Platinum Certified Diamond Engagement Ring - 2.32ct - Size N
Platinum Certified Diamond Engagement Ring - 2.32ct - Size N
Platinum Certified Diamond Engagement Ring - 2.32ct - Size N
Platinum Certified Diamond Engagement Ring - 2.32ct - Size N
Platinum Certified Diamond Engagement Ring - 2.32ct - Size N
Platinum Certified Diamond Engagement Ring - 2.32ct - Size N
Miltons Diamonds
Platinum Certified Diamond Engagement Ring - 2.32ct - Size N
£13,500.00
Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G
Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G
Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G
Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G
Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G
Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G
Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G
Miltons Diamonds
Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G
£8,795.00
Ladies Platinum Certified 1.17ct Diamond Engagement Ring
Ladies Platinum Certified 1.17ct Diamond Engagement Ring
Ladies Platinum Certified 1.17ct Diamond Engagement Ring
Ladies Platinum Certified 1.17ct Diamond Engagement Ring
Ladies Platinum Certified 1.17ct Diamond Engagement Ring
Ladies Platinum Certified 1.17ct Diamond Engagement Ring
Miltons Diamonds
Ladies Platinum Certified 1.17ct Diamond Engagement Ring
£7,955.00
Ladies Platinum Certified Diamond Engagement Ring - IF
Ladies Platinum Certified Diamond Engagement Ring - IF
Ladies Platinum Certified Diamond Engagement Ring - IF
Ladies Platinum Certified Diamond Engagement Ring - IF
Ladies Platinum Certified Diamond Engagement Ring - IF
Ladies Platinum Certified Diamond Engagement Ring - IF
Ladies Platinum Certified Diamond Engagement Ring - IF
Ladies Platinum Certified Diamond Engagement Ring - IF
Ladies Platinum Certified Diamond Engagement Ring - IF
Miltons Diamonds
Ladies Platinum Certified Diamond Engagement Ring - IF
£9,250.00
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Are your diamonds and gemstones authentic?

Yes — every diamond and gemstone at Miltons Diamonds is carefully checked for authenticity. Our pieces are assessed by experienced and qualified gemmologists to ensure they meet our high standards. Where applicable, stones may also be accompanied by independent certification (such as GIA), giving you complete confidence in the quality and provenance of your purchase.

How are your items valued?

All of our jewellery is thoroughly inspected and valued by a qualified gemmologist. We assess key factors such as cut, colour, clarity, carat weight, and overall craftsmanship. This expert evaluation ensures that every piece is accurately described and fairly priced, so you can buy with confidence knowing you’re receiving genuine value.

Are your pre-owned watches authenticated?

Absolutely. Every pre-owned watch we sell undergoes a rigorous authentication process. Our watches are inspected by specialists to verify originality, condition, and performance. We ensure that each timepiece is genuine and accurately represented, so you can purchase luxury watches with complete peace of mind.

What are your delivery times and do you hold your stock?

We aim to dispatch all orders quickly and securely, with most items sent via next working day delivery after purchase. All products listed on our website are physically held in stock by Miltons Diamonds and are available to view in-store as well as online. This means you can shop confidently knowing your chosen item is ready for immediate dispatch or personal viewing.

100+ YEARS HERITAGE

2 YEAR ROLEX WARRANTY

NEXT DAY DELIVERY

5 STAR RATED