Platinum Lab Grown Engagement Rings

Sprinkle Band

Regular price
$1,490
Regular price
Sale price
$1,490 USD

Channel Set Lab Diamond Band

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

Mixed Bezels Lab Diamond Band

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

Half & Half Lab Diamond Band

Regular price
$1,940
Regular price
Sale price
$1,940 USD

Single Prong Floating Diamond Ring

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

Emerald Cut East-West Bezel Band

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

Emerald Cut Lab Diamond Bezel Band

Regular price
$2,840
Regular price
Sale price
$2,840 USD

Luxe Lab Diamond Pave Band

Regular price
$2,450
Regular price
Sale price
$2,450 USD

Slim Contour Diamond Band

Regular price
$1,290
Regular price
Sale price
$1,290 USD

Cushion Lab Diamond Bezel Band

Regular price
$2,590
Regular price
Sale price
$2,590 USD

Princess Cut Solitaire Ring

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

Princess Cut Pave Engagement Ring

Regular price
$1,490+
Regular price
Sale price
$1,490 USD

Princess Cut Low Profile Wide Solitaire

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

Princess Cut Low Hidden Halo Wide Ring

Regular price
$1,840+
Regular price
Sale price
$1,840 USD

Princess Cut Low Bezel Ring

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

Princess Cut Low Bezel Ring

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