Platinum Lab Grown Engagement Rings

Low Profile Engagement Ring

Regular price
$1,190+
Regular price
Sale price
$1,190 USD

Radiant Cut Hidden Halo Ring

Regular price
$1,390+
Regular price
Sale price
$1,390 USD

Emerald Cut Engagement Ring

Regular price
$1,190+
Regular price
Sale price
$1,190 USD

Radiant Cut Low Profile Hidden Halo

Regular price
$1,390+
Regular price
Sale price
$1,390 USD

Emerald Cut Low Hidden Halo Ring

Regular price
$1,390+
Regular price
Sale price
$1,390 USD

Oval Engagement Ring

Regular price
$1,190+
Regular price
Sale price
$1,190 USD

Round Engagement Ring

Regular price
$1,190+
Regular price
Sale price
$1,190 USD

Radiant Cut Double Prong Cathedral

Regular price
$1,440+
Regular price
Sale price
$1,440 USD
All Center Shapes

Oval Low Profile Solitaire

Regular price
$1,190+
Regular price
Sale price
$1,190 USD

Pear Cut Engagement Ring

Regular price
$1,190+
Regular price
Sale price
$1,190 USD

6 Prong Engagement Ring

Regular price
$1,340+
Regular price
Sale price
$1,340 USD

Euro Cut Ring

Regular price
$1,540+
Regular price
Sale price
$1,540 USD

Euro Cut Ring

Regular price
$1,240+
Regular price
Sale price
$1,240 USD

Euro Cut Compass Prong Ring

Regular price
$1,540+
Regular price
Sale price
$1,540 USD

Euro Cut Compass Prong Ring

Regular price
$1,240+
Regular price
Sale price
$1,240 USD

Old Mine Split Shank Solitaire

Regular price
$1,890+
Regular price
Sale price
$1,890 USD

The Only Metal that's Pure White

Platinum engagement rings are more pure than gold rings - which always start out yellow - so platinum does not need plating to shine bright white.


The Only Metal that's Pure White

Platinum engagement rings are more pure than gold rings - which always start out yellow - so platinum does not need plating to shine bright white.

Platinum lab grown engagement rings

If your love is rare and strong, it deserves a metal that is equally robust and cherished. Enter platinum. This malleable noble metal is extremely resistant to tarnishing and corrosion and makes for some truly jaw-dropping lab grown diamond engagement rings. Since it is the only pure white metal, platinum doesn’t require any plating! That’s right – your platinum lab grown diamond ring will stay never lose its luster or color, making it an ideal choice for a family heirloom.

At Plum Diamonds, we don’t take the rarity of platinum for granted. That’s why we work closely with our expert casters to produce the highest quality platinum pieces. Plus, being stronger than gold, your lab grown diamond rings, whether they be three stone, cathedral or solitaire, will always be safe with a platinum engagement ring setting. So go ahead, celebrate your love worry-free!

Every Plum platinum engagement ring is backed for life and responsibly made from the finest metal alloys and lab diamonds, costing far less than their mined counterparts – an ethical, eco-friendly way to go bigger, better, and brighter.