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Platinum Eternity Design Sapphire Gemstone Rings

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A wonderful declaration of love is the combination of a stunning gemstone with diamonds. Our collection of platinum sapphire eternity design gemstone rings allows you to showcase your devotion in a stunning piece of jewellery.

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All our diamonds are naturally mined and ethically sourced
At Purely Diamonds, we believe in the magic of natural diamonds. Formed over billions of years and found naturally in the ground, these precious gems add to the story of your own diamond journey. We also make sure all our diamonds are conflict-free as the ethical mining and sourcing is very important to us.
A beautiful fifteen stone sapphire & diamond eternity ring in platinum
PDS166PL
A beautiful fifteen stone sapphire & diamond eternity ring in platinum
From: £689 to £1,238
An elegant five stone sapphire & diamond eternity ring in platinum
PDS367PL
An elegant five stone sapphire & diamond eternity ring in platinum
From: £678 to £1,287
A timeles nine stone sapphire & diamond eternity ring in platinum
PDS053PL
A timeles nine stone sapphire & diamond eternity ring in platinum
From: £682 to £1,455
A beautiful fifteen stone sapphire & diamond eternity ring in platinum
PDWS061PL
A beautiful fifteen stone sapphire & diamond eternity ring in platinum
From: £767 to £1,050
A beautiful seven stone sapphire & diamond eternity ring in platinum
PDS336PL
A beautiful seven stone sapphire & diamond eternity ring in platinum
From: £849 to £1,590
A seventeen stone sapphire & diamond eternity ring in platinum
PDWS084PL
A seventeen stone sapphire & diamond eternity ring in platinum
From: £911 to £933
A stunning princess cut sapphire & diamond seven stone ring in platinum
PDS033PL
A stunning princess cut sapphire & diamond seven stone ring in platinum
From: £944 to £1,699
A beautiful eleven stone sapphire & diamond eternity ring in platinum
PDS302PL
A beautiful eleven stone sapphire & diamond eternity ring in platinum
From: £636 to £1,237
A classic five stone sapphire & diamond eternity ring in platinum
PDS350PL
A classic five stone sapphire & diamond eternity ring in platinum
From: £926 to £2,660
A classic sapphire & diamond eleven stone eternity ring in platinum
PDS344PL
A classic sapphire & diamond eleven stone eternity ring in platinum
From: £721 to £1,119
A beautiful sapphire & diamond eternity ring in platinum
PDWS080PL
A beautiful sapphire & diamond eternity ring in platinum
From: £850 to £1,137
An elegant sapphire & diamond seven stone eternity ring in platinum
PDS244PL
An elegant sapphire & diamond seven stone eternity ring in platinum
From: £721 to £2,313
A stunning five stone Princess Cut sapphire & diamond eternity ring in platinum
PDS310PL
A stunning five stone Princess Cut sapphire & diamond eternity ring in platinum
From: £977 to £1,952
A stylish five stone sapphire & diamond eternity ring in platinum
PDS048PL
A stylish five stone sapphire & diamond eternity ring in platinum
From: £824 to £1,773
A stunning five stone sapphire & diamond eternity ring in platinum
PDS110PL
A stunning five stone sapphire & diamond eternity ring in platinum
From: £1,187 to £2,172
A stunning sapphire & diamond eternity ring in platinum
PDS548PL
A stunning sapphire & diamond eternity ring in platinum
From: £836 to £1,377
An elegant sapphire and diamond nine stone eternity ring in platinum
PDS043PL
An elegant sapphire and diamond nine stone eternity ring in platinum
From: £1,044 to £1,714
A stylish baguette cut sapphire & diamond ring in platinum
PDS352PL
A stylish baguette cut sapphire & diamond ring in platinum
From: £1,022 to £1,029

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20 Trees Planted With Every Order
We have partnered with Trees For The Future to do our part in looking after our planet and planning for the future. For every order received, we'll ensure there are 20 trees planted with the mission to recreate forests and decrease CO2 in our atmosphere.
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  • Proud Member Of

  • We are a member of the National Association of Jewellers
  • We are a Goldsmiths Company member
  • Assay Assured

  • Proud Supplier Of

  • We supply certified GIA diamonds We only deal in conflict-free diamonds
  • We supply certified IGI diamonds We are a partner of Trees For The Future

Purely Diamonds is a trading name of Stephen Tyler Limited. Registered Company Number (Incorporated in England): 01840310. VAT Number: 466237727 (GB)