View our stunning collection of platinum 3 stone engagement rings to find the perfect ring your proposal. Browse the complete collection of engagement rings that can be designed for you, or choose from our ready made platinum rings. Our platinum engagement rings are crafted to perfection with the highest quality GIA certified diamonds in round, princess cut, oval, and more.
Platinum 3 Stone Engagement Rings (Viewable in 360° HD)
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Diamond Shape×
The shape of your diamond is arguably just as important as the stone itself. The shapes you can choose from are: round brilliant, asscher, radiant, cushion, oval, emerald, pear, marquise, heart, princess.
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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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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 rings available with express delivery (3-5 working days) or speak to one of our experts via live chat.
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Platinum Round Brilliant 3 Stone with Pears
PRS0645
£ 1,351.25 £ 1,351.25 (0% OFF)
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Platinum Round Brilliant Openset 3 Stone with Cutdown
PRS0657
£ 1,604.25 £ 1,604.25 (0% OFF)
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Platinum Round Brilliant Openset 3 Stone
PRS0653
£ 1,144.25 £ 1,144.25 (0% OFF)
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Platinum Round Brilliant 3 Stone with Rounds
PRS0637
£ 1,351.25 £ 1,351.25 (0% OFF)
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Round Brilliant 3 Stone with Tapers
PRS0649
£ 1,351.25 £ 1,351.25 (0% OFF)
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Round Brilliant 3 Stone Knife Edge with Pears
PRSN0196
£ 1,477.75 £ 1,477.75 (0% OFF)
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Round Brilliant 3 Stone Crossover
PRSN0216
£ 1,667.50 £ 1,667.50 (0% OFF)
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Platinum Marquise Cut 3 Stone with Pears
PRS0705
£ 1,351.25 £ 1,351.25 (0% OFF)
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Emerald Cut 3 Stone with Tapers
PRS0693
£ 1,351.25 £ 1,351.25 (0% OFF)
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Emerald Cut Art Deco 3 Stone With Baguettes
PRSN0204
£ 1,489.25 £ 1,489.25 (0% OFF)
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Platinum Princess Cut Openset 3 Stone
PRS0673
£ 1,144.25 £ 1,144.25 (0% OFF)
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Platinum Cushion Cut 3 Stone with Pears
PRS0681
£ 1,351.25 £ 1,351.25 (0% OFF)
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Platinum Heart Shape 3 Stone with Pears
PRS0713
£ 1,351.25 £ 1,351.25 (0% OFF)
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Asscher Cut 3 Stone with Tapers
PRS0709
£ 1,351.25 £ 1,351.25 (0% OFF)
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Platinum Oval Shape 3 Stone with Pears
PRS0697
£ 1,351.25 £ 1,351.25 (0% OFF)
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Oval Shape 3 Stone With Trillions
PRSN0192
£ 1,351.25 £ 1,351.25 (0% OFF)
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Platinum Pear Shape 3 Stone with Pears
PRS0677
£ 1,351.25 £ 1,351.25 (0% OFF)
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Radiant Cut Art Deco 3 Stone With Baguettes
PRSN0208
£ 1,489.25 £ 1,489.25 (0% OFF)
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Oval Shape 3 Stone with Tapers
PRS0701
£ 1,351.25 £ 1,351.25 (0% OFF)
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Cushion Cut 3 Stone with Tapers
PRS0685
£ 1,351.25 £ 1,351.25 (0% OFF)