Platinum Blue Diamond Rings, grown in light.
Cool metal around a cool color. Platinum blue diamond engagement rings pair a naturally white metal with a fancy blue center, so nothing warms or tints the stone. Styles range from plain solitaires and twists to pave, bar-set, bezel and floral settings. Pick the setting here, with a blue center you choose in the next step.
$2,889 $5,778
$1,319 $2,638
$2,739 $5,478
$3,109 $6,218
$3,649 $7,298
$2,409 $4,818
$2,549 $5,098
$2,549 $5,098
$2,549 $5,098
$2,549 $5,098
$2,549 $5,098
$2,549 $5,098
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Why platinum suits blue
Platinum is white through and through, needing no plating, so a platinum ring with a blue diamond holds the same cool tone for decades. It weighs more than gold, and a scratch pushes the metal sideways rather than removing it, which helps the prongs keep their grip on the center.
Setting styles
- Solitaire: a plain or tapered shank, leaving the blue alone on top.
- Pave or side stones: lab-grown diamond accents that put white sparkle next to the color.
- Bezel: a smooth metal collar, sleek and protective.
- Floral or vintage: marquise petals or a vintage pear head for detail.
Shape of the blue center
Round, Asscher and cushion suit most designs. Brilliant-faceted cushion and radiant cuts spread color evenly across the face, while emerald and Asscher step cuts show the blue in broad, calm flashes. Oval, pear, marquise, princess and heart are offered across the range too.
Platinum in daily wear
With wear, platinum takes on a muted satin sheen. Plenty of owners like it; others ask a bench jeweler for a fresh mirror polish. A warm, sudsy rinse and a gentle soft-bristle pass keep the blue clear.
Ring questions, answered.
How do I choose an engagement ring?
Start with the shape she loves, then the setting style. Our gemologists can help you balance carat, cut and budget on a free video call.
Can I build my own engagement ring?
Yes — pick a setting, then a diamond, and review the finished ring before it goes to the bench.
Does the diamond price include the setting?
Diamond and setting are priced separately in the ring builder, and the total is shown before you add the ring to your bag.
How do I find my ring size?
Use our ring size guide, or order a free ring sizer — it arrives in 2–3 days.
Can I return or resize my ring?
You can return it within 30 days (a 10% restocking fee applies to resized or engraved pieces), and your first resize within 60 days of delivery is free.
Should I insure my engagement ring?
We recommend it. Every ring ships fully insured; once it is yours, a separate jewelry insurance policy covers loss, theft and accidental damage.
