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Womens 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.

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  • Ladies Platinum Round Brilliant 4.57ct Diamond Engagement Ring Certified Diamond
    Miltons Diamonds Ladies Platinum Round Brilliant 4.57ct Diamond Engagement Ring
    Reference: 5219007
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Metal Weight: 9.80
    • Material: 950 Platinum
    • Diamond Clarity: VVS2
    • Diamond Colour: M
    • Main Diamond Weight: 4.57
    • Total Diamond Weight: 4.57
    • Certificate: 20057306
    Item in Stock   |   Usually dispatched within 24 hours
    • VVS2
    • M
    £59,950
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  • Platinum Cushion Cut Diamond Engagement Ring - 3.57ct - Size M½ Certified Diamond
    Miltons Diamonds Platinum Cushion Cut Diamond Engagement Ring - 3.57ct - Size M½
    Reference: 8318229
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Ring Style: Engagement Ring
    • Ring Size: M½
    • Metal Weight: 6.30
    • Material: 950 Platinum
    • Diamond Clarity: SI1
    • Diamond Colour: H
    • Total Diamond Weight: 3.57ct
    • Certificate: ANCH 20051173
    • Main Diamond Weight: 3.21ct
    • Diamond Creation: Natural
    Item in Stock   |   Usually dispatched within 24 hours
    • SI1
    • H
    • Natural
    £27,500
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  • 1.94ct Platinum Halo Ring - Cushion Cut - Size L - 8.1g Certified Diamond
    Miltons Diamonds 1.94ct Platinum Halo Ring - Cushion Cut - Size L - 8.1g
    Reference: 5119026
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Metal Weight: 8.10
    • Material: 950 Platinum
    • Diamond Clarity: VS2
    • Diamond Colour: E
    • Main Diamond Weight: 1.70CT
    • Total Diamond Weight: 1.94CT
    • Certificate: GIA 2161044023
    • Ring Size: L½
    Item in Stock   |   Usually dispatched within 24 hours
    • VS2
    • E
    £19,950
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  • Ladies Platinum Certified Diamond Solitaire Ring - 2.18ct Certified Diamond
    Miltons Diamonds Ladies Platinum Certified Diamond Solitaire Ring - 2.18ct
    Reference: 3223001
    • New or Pre Owned: Pre Owned
    • Metal Weight: 7.20
    • Material: 950 Platinum
    • Diamond Clarity: P1
    • Diamond Colour: G
    • Total Diamond Weight: 2.18ct
    • Certificate: anch 20057654
    • Diamond Creation: Natural
    Item in Stock   |   Usually dispatched within 24 hours
    • P1
    • G
    • Natural
    £18,995
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  • 1.71ct Diamond Platinum Engagement Ring - G - VS1 Certified Diamond
    Miltons Diamonds 1.71ct Diamond Platinum Engagement Ring - G - VS1
    Reference: 4623001
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Material: 950 Platinum
    • Diamond Colour: G
    • Diamond Clarity: VS1
    • Total Diamond Weight: 1.71ct
    • Ring Size: M
    • Certificate: AnchorCert
    • Diamond Cut: Round Brilliant Cut
    • Ring Style: Engagement Ring
    Item in Stock   |   Usually dispatched within 24 hours
    • G
    • VS1
    £17,950
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  • Platinum Certified 3.00ct Heart Shape Diamond Engagement Ring Certified Diamond
    Miltons Diamonds Platinum Certified 3.00ct Heart Shape Diamond Engagement Ring
    Reference: 6719022
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Ring Style: Engagement Ring
    • Ring Size: N
    • Metal Weight: 5.80
    • Material: 950 Platinum
    • Diamond Clarity: SI2
    • Diamond Colour: K
    • Certificate: ANCH 20060513
    • Total Diamond Weight: 3.00ct
    • Main Diamond Weight: 3.00ct
    • Diamond Creation: Natural
    Item in Stock   |   Usually dispatched within 24 hours
    • SI2
    • K
    • Natural
    £16,950
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  • Ladies Platinum Diamond Solitaire Engagement Ring - 1.79ct Certified Diamond
    Miltons Diamonds Ladies Platinum Diamond Solitaire Engagement Ring - 1.79ct
    Reference: 5223004
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Metal Weight: 7.50
    • Material: 950 Platinum
    • Diamond Clarity: VS1
    • Diamond Colour: J
    • Main Diamond Weight: 1.79ct
    • Total Diamond Weight: 1.79ct
    • Certificate: anch 20057958
    • Ring Size: M
    Item in Stock   |   Usually dispatched within 24 hours
    • VS1
    • J
    £14,995
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  • Ladies Platinum Certified Diamond Trilogy Ring - 1.41ct BESPOKE
    Miltons Diamonds Ladies Platinum Certified Diamond Trilogy Ring - 1.41ct
    Reference: 1836176
    • New or Pre Owned: New
    • Gender: Ladies
    • Ring Style: Trilogy
    • Ring Size: L
    • Metal Weight: 5.10
    • Material: 950 Platinum
    • Diamond Colour: G
    • Diamond Clarity: VS1
    • Main Diamond Weight: 1.01
    • Total Diamond Weight: 1.41
    • Certificate: GIA-1353203685
    • Stone Colour: D/E-VVS
    • Stone: Diamond
    • Diamond Creation: Natural
    Item in Stock   |   Usually dispatched within 24 hours
    • G
    • VS1
    • Natural
    £10,999
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  • Ladies Platinum Certified Oval Diamond Engagement Ring - 1.08ct BESPOKE
    Miltons Diamonds Ladies Platinum Certified Oval Diamond Engagement Ring - 1.08ct
    Reference: 1836175
    • New or Pre Owned: New
    • Gender: Ladies
    • Ring Style: Trilogy
    • Ring Size: M
    • Metal Weight: 6.00
    • Material: 950 Platinum
    • Diamond Colour: F
    • Diamond Clarity: VS1
    • Main Diamond Weight: 0.90
    • Total Diamond Weight: 1.08
    • Certificate: GIA-6405020794
    • Stone Colour: D/E-VVS
    • Stone: Diamond
    • Diamond Creation: Natural
    Item in Stock   |   Usually dispatched within 24 hours
    • F
    • VS1
    • Natural
    £10,750
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  • Ladies GIA Certified 1.46ct Diamond Platinum Ring - Colour E BESPOKE
    Miltons Diamonds Ladies GIA Certified 1.46ct Diamond Platinum Ring - Colour E
    Reference: 1836160
    • New or Pre Owned: New
    • Gender: Ladies
    • Ring Style: Engagement Ring
    • Ring Size: M
    • Metal Weight: 5.40
    • Material: 950 Platinum
    • Diamond Colour: E
    • Diamond Clarity: SI1
    • Main Diamond Weight: 1.01
    • Total Diamond Weight: 1.46
    • Certificate: 6395268099
    • Stone Colour: G/H-SI
    • Stone: DIAMOND
    • Diamond Creation: Natural
    • Stone Weights: 0.45
    Item in Stock   |   Usually dispatched within 24 hours
    • SI1
    • E
    • Natural
    £10,450
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  • Platinum 2.77ct Certified Diamond Engagement Ring Certified Diamond
    Miltons Diamonds Platinum 2.77ct Certified Diamond Engagement Ring
    Reference: 5218132
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Metal Weight: 6.80
    • Material: 950 Platinum
    • Diamond Clarity: P2
    • Diamond Colour: K
    • Total Diamond Weight: 2.77ct
    • Certificate: anch 20060837
    • Ring Size: M
    Item in Stock   |   Usually dispatched within 24 hours
    • P2
    • K
    £9,995
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  • Ladies Platinum Certified 1.51ct Diamond Engagement Ring - VS2/F Certified Diamond
    Miltons Diamonds Ladies Platinum Certified 1.51ct Diamond Engagement Ring - VS2/F
    Reference: 5219040
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Metal Weight: 5.50
    • Material: 950 Platinum
    • Diamond Clarity: VS2
    • Diamond Colour: F
    • Main Diamond Weight: 1.51ct
    • Certificate: egl us919920201D
    • Ring Size: L
    Item in Stock   |   Usually dispatched within 24 hours
    • VS2
    • F
    £9,950
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  • Ladies GIA Certified 1.36ct Diamond Platinum Ring - Colour G BESPOKE
    Miltons Diamonds Ladies GIA Certified 1.36ct Diamond Platinum Ring - Colour G
    Reference: 1836157
    • New or Pre Owned: New
    • Gender: Ladies
    • Ring Style: Engagement Ring
    • Ring Size: M
    • Metal Weight: 5.10
    • Material: 950 Platinum
    • Diamond Colour: G
    • Diamond Clarity: VS1
    • Main Diamond Weight: 1.01
    • Total Diamond Weight: 1.36
    • Certificate: 5212753623
    • Stone Colour: G/H-SI
    • Stone: DIAMOND
    • Diamond Creation: Natural
    • Stone Weights: 0.35
    Item in Stock   |   Usually dispatched within 24 hours
    • G
    • VS1
    • Natural
    £9,795
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  • 0.81ct Certified Fancy Purplish Pink Diamond Engagement Ring Certified Diamond
    Miltons Diamonds 0.81ct Certified Fancy Purplish Pink Diamond Engagement Ring
    Reference: 5219036
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Metal Weight: 4.60
    • Material: 950 Platinum
    • Diamond Clarity: SI2
    • Diamond Colour: Fancy Purplish Pink
    • Main Diamond Weight: 0.59
    • Total Diamond Weight: 0.81ct
    • Certificate: GIA~2155102649
    • Ring Size: M
    • Stone: Diamond
    • Diamond Creation: Natural
    Item in Stock   |   Usually dispatched within 24 hours
    • SI2
    • Natural
    £9,500
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  • Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour D BESPOKE
    Miltons Diamonds Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour D
    Reference: 1836163
    • New or Pre Owned: New
    • Gender: Ladies
    • Ring Style: Engagement Ring
    • Ring Size: M
    • Metal Weight: 3.80
    • Material: 950 Platinum
    • Diamond Colour: D
    • Diamond Clarity: SI1
    • Main Diamond Weight: 1.00
    • Total Diamond Weight: 1.40
    • Certificate: 5396569635
    • Stone Colour: G/H-SI
    • Stone: DIAMOND
    • Diamond Creation: Natural
    • Stone Weights: .40
    Item in Stock   |   Usually dispatched within 24 hours
    • D
    • SI1
    • Natural
    £9,250
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  • Ladies Platinum Diamond Engagement Ring - 1.51ct
    Miltons Diamonds Ladies Platinum Diamond Engagement Ring - 1.51ct
    Reference: 4716012
    • New or Pre Owned: Pre Owned
    • Metal Weight: 7.6g
    • Material: 950 Platinum
    • Diamond Cut: Round Brilliant Cut
    • Certificate: GIA 13699179
    • Total Diamond Weight: 1.51ct
    • Ring Size: M
    • Main Diamond Weight: 1.01ct
    • Diamond Colour: F
    • Diamond Clarity: VS2
    • Ring Style: Engagement Ring
    Item in Stock   |   Usually dispatched within 24 hours
    • F
    • VS2
    £8,995
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  • Ladies Platinum Pear Cut Diamond Solitaire Ring - 1.53ct
    Miltons Diamonds Ladies Platinum Pear Cut Diamond Solitaire Ring - 1.53ct
    Reference: 5173004
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Metal Weight: 6.5
    • Material: 950 Platinum
    • Diamond Clarity: SI2
    • Diamond Colour: G/H
    • Main Diamond Weight: 1.53ct
    • Total Diamond Weight: 1.53ct
    Item in Stock   |   Usually dispatched within 24 hours
    • SI2
    • G/H
    £8,995
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  • Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G BESPOKE
    Miltons Diamonds Ladies GIA Certified 1.40ct Diamond Platinum Ring - Colour G
    Reference: 1836152
    • New or Pre Owned: New
    • Gender: Ladies
    • Ring Style: Engagement Ring
    • Ring Size: M
    • Metal Weight: 5.10
    • Material: 950 Platinum
    • Diamond Colour: G
    • Diamond Clarity: SI2
    • Main Diamond Weight: 1.00
    • Total Diamond Weight: 1.40
    • Certificate: 5373361680
    • Stone Colour: G/H-SI
    • Stone: DIAMOND
    • Diamond Creation: Natural
    • Stone Weights: 0.40
    Item in Stock   |   Usually dispatched within 24 hours
    • G
    • SI2
    • Natural
    £8,795
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  • Heavy Platinum Diamond Engagement Ring - 1.76ct - 12.9g We Love Heavy Platinum Diamond Engagement Ring - 1.76ct - 12.9g
    Miltons Diamonds Heavy Platinum Diamond Engagement Ring - 1.76ct - 12.9g
    Reference: 8519001
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Ring Style: Engagement Ring
    • Ring Size: J
    • Metal Weight: 12.90
    • Material: 950 Platinum
    • Diamond Colour: J/K
    • Diamond Clarity: P1/2
    • Main Diamond Weight: 1.78
    • Total Diamond Weight: 1.96
    • Condition: 1 (mint)
    • Diamond Creation: Natural
    Item in Stock   |   Usually dispatched within 24 hours
    • P1/2
    • J/K
    • 1 (mint)
    • Natural
    £8,500
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  • Platinum GIA Certified 1.01ct Diamond Engagement Ring - Size L½ Certified Diamond
    Miltons Diamonds Platinum GIA Certified 1.01ct Diamond Engagement Ring - Size L½
    Reference: 8419023
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Ring Style: Engagement Ring
    • Ring Size: L½
    • Metal Weight: 5.20
    • Material: 950 Platinum
    • Diamond Clarity: VS1
    • Diamond Colour: D
    • Certificate: GIA 16175396
    • Main Diamond Weight: 1.01
    • Diamond Creation: Natural
    Item in Stock   |   Usually dispatched within 24 hours
    • 1 (mint)
    • VS1
    • D
    • Natural
    £8,500
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  • Ladies GIA Certified 1.46ct Diamond Platinum Ring - Colour G BESPOKE
    Miltons Diamonds Ladies GIA Certified 1.46ct Diamond Platinum Ring - Colour G
    Reference: 1836156
    • New or Pre Owned: New
    • Gender: Ladies
    • Ring Style: Engagement Ring
    • Ring Size: M
    • Metal Weight: 5.00
    • Material: 950 Platinum
    • Diamond Colour: G
    • Diamond Clarity: SI1
    • Main Diamond Weight: 1.01
    • Total Diamond Weight: 1.46
    • Certificate: 2398284374
    • Stone Colour: G/H-SI
    • Stone: DIAMOND
    • Diamond Creation: Natural
    • Stone Weights: 0.45
    Item in Stock   |   Usually dispatched within 24 hours
    • G
    • SI1
    • Natural
    £8,499
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  • Ladies Platinum Diamond Solitaire Engagement Ring - 1.32ct
    Miltons Diamonds Ladies Platinum Diamond Solitaire Engagement Ring - 1.32ct
    Reference: 5218043
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Metal Weight: 7.90
    • Material: 950 Platinum
    • Diamond Clarity: VVS2/VS1
    • Diamond Colour: H/I
    • Main Diamond Weight: 1.02
    • Total Diamond Weight: 1.32
    • Ring Size: O
    Item in Stock   |   Usually dispatched within 24 hours
    • VVS2/VS1
    • H/I
    £7,995
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  • Ladies Platinum Princess-Cut Diamond Engagement Ring - 0.90ct Certified Diamond
    Miltons Diamonds Ladies Platinum Princess-Cut Diamond Engagement Ring - 0.90ct
    Reference: 5173003
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Metal Weight: 6.0
    • Material: 950 Platinum
    • Diamond Clarity: VVS2
    • Diamond Colour: D
    • Main Diamond Weight: 0.90ct
    • Total Diamond Weight: 0.90ct
    • Certificate: GIA 17282174
    • Ring Size: N
    Item in Stock   |   Usually dispatched within 24 hours
    • VVS2
    • D
    £7,995
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  • Ladies Platinum Certified 1.17ct Diamond Engagement Ring
    Miltons Diamonds Ladies Platinum Certified 1.17ct Diamond Engagement Ring
    Reference: 5319003
    • New or Pre Owned: Pre Owned
    • Gender: Ladies
    • Material: 950 Platinum
    • Metal Weight: 7.10
    • Ring Size: M
    • Ring Style: Solitaire
    • Diamond Clarity: SI1
    • Diamond Colour: D
    • Diamond Creation: Natural
    • Main Diamond Weight: 1.17
    • Total Diamond Weight: 1.17
    • Certificate: Anch-20060576
    Item in Stock   |   Usually dispatched within 24 hours
    • SI1
    • D
    • Natural
    £7,955
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