Platinum Lab Grown Engagement Rings

Cushion Cut Hidden Halo Double Pave

Regular price
$2,240+
Regular price
Sale price
$2,240 USD

Oval Low Profile Solitaire

Regular price
$1,140+
Regular price
Sale price
$1,140 USD

Cushion Cut Low Hidden Halo Pave

Regular price
$1,640+
Regular price
Sale price
$1,640 USD

Cushion Cut Pave Engagement Ring

Regular price
$1,440+
Regular price
Sale price
$1,440 USD

Pear Halo Pave Ring

Regular price
$1,990
Regular price
Sale price
$1,990 USD

Pear Cut Engagement Ring

Regular price
$1,140+
Regular price
Sale price
$1,140 USD

6 Prong Engagement Ring

Regular price
$1,140+
Regular price
Sale price
$1,140 USD

Art Deco Emerald Cut Ring

Regular price
$2,540+
Regular price
Sale price
$2,540 USD

Oval Half Moon Three Stone

Regular price
$2,890+
Regular price
Sale price
$2,890 USD
All Center Shapes

Cushion Three Stone Cathedral

Regular price
$2,290+
Regular price
Sale price
$2,290 USD
All Center Shapes

Radiant Cut Vintage Peekaboo Ring

Regular price
$1,890+
Regular price
Sale price
$1,890 USD
All Center Shapes

Tulip Accented Ring

Regular price
$2,040+
Regular price
Sale price
$2,040 USD

Petite Cluster Ring

Regular price
$2,040+
Regular price
Sale price
$2,040 USD
All Center Shapes

Three Stone Trillion Ring

Regular price
$3,640+
Regular price
Sale price
$3,640 USD
All Center Shapes

Wave Bypass Solitaire

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

Oval Three Stone Trellis Ring

Regular price
$3,840+
Regular price
Sale price
$3,840 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.


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.