Browse our selection of platinum three quarter eternity rings, crafted to perfection with the highest quality GIA certified diamonds. Celebrate your anniversary with a diamond eternity ring. If you would like to book a consultation, please contact us.
Platinum Three Quarter Set Eternity Rings (Viewable in 360° HD)
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Eternity Ring Style×
Steven Stone offers a huge variety of diamond engagement ring setting styles, from classic solitaire to contemporary three stone designs. We can source diamonds and precious gemstones of all shapes and sizes and set them into a setting of your choice.
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Setting Style×
Steven Stone offers a huge variety of diamond engagement ring setting styles, from classic solitaire to contemporary three stone designs. We can source diamonds and precious gemstones of all shapes and sizes and set them into a setting of your choice.
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Metal×
Discover the ideal precious metal type for your engagement ring. Browse our wide selection of metals in contemporary platinum, vintage rose gold or traditional yellow gold or white gold.
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Price×
We are confident that we always give the best value for money so if you find a like for like diamond cheaper from a high street competitor, we will match the price.
Need it fast? View our available stock with express delivery (1-2 working days) or speak to one of our experts via live chat.

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Platinum 1.80mm Round Brilliant Cutdown Three Quarter
PDR1547
£ 1,533.00 £ 1,533.00 (0% OFF)
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Platinum 2.00mm Round Brilliant Cutdown Three Quarter
PDR1548
£ 1,673.00 £ 1,673.00 (0% OFF)
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Platinum 2.50mm Round Brilliant Cutdown Three Quarter
PDR1550
£ 2,450.00 £ 2,450.00 (0% OFF)
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Platinum 2.50mm Round Brilliant Channel Three Quarter
PDR1564
£ 2,037.00 £ 2,037.00 (0% OFF)
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Platinum 3.00mm Princess Cut Channel Three Quarter
PDR1571
£ 2,877.00 £ 2,877.00 (0% OFF)
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Platinum 2.25mm Round Brilliant Cutdown Three Quarter
PDR1549
£ 1,953.00 £ 1,953.00 (0% OFF)
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Platinum 3.00mm Round Brilliant Cutdown Three Quarter
PDR1552
£ 3,465.00 £ 3,465.00 (0% OFF)
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Platinum 2.50mm Princess Cut Channel Three Quarter
PDR1569
£ 2,037.00 £ 2,037.00 (0% OFF)
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Platinum 2.00mm Round Brilliant Pavé Three Quarter
PDR1555
£ 1,386.00 £ 1,386.00 (0% OFF)
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Platinum 3.50mm Round Brilliant Cutdown Three Quarter
PDR1554
£ 4,410.00 £ 4,410.00 (0% OFF)
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Platinum 2.25mm Round Brilliant Channel Three Quarter
PDR1563
£ 1,624.00 £ 1,624.00 (0% OFF)
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Platinum 2.75mm Round Brilliant Cutdown Three Quarter
PDR1551
£ 2,793.00 £ 2,793.00 (0% OFF)
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Platinum 2.00mm Round Brilliant Channel Three Quarter
PDR1562
£ 1,386.00 £ 1,386.00 (0% OFF)
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Platinum 3.50mm Round Brilliant Channel Three Quarter
PDR1568
£ 3,661.00 £ 3,661.00 (0% OFF)
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Platinum 2.25mm Round Brilliant Pavé Three Quarter
PDR1556
£ 1,624.00 £ 1,624.00 (0% OFF)
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Platinum 2.75mm Round Brilliant Channel Three Quarter
PDR1565
£ 2,317.00 £ 2,317.00 (0% OFF)
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Platinum 2.50mm Round Brilliant Pavé Three Quarter
PDR1557
£ 2,037.00 £ 2,037.00 (0% OFF)
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Platinum 3.00mm Round Brilliant Pavé Three Quarter
PDR1559
£ 2,877.00 £ 2,877.00 (0% OFF)
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Platinum 3.25mm Round Brilliant Cutdown Three Quarter
PDR1553
£ 3,780.00 £ 3,780.00 (0% OFF)
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Platinum 3.50mm Princess Cut Channel Three Quarter
PDR1573
£ 3,661.00 £ 3,661.00 (0% OFF)