Platinum Lab Grown Engagement Rings

Round

Emerald

Oval

Radiant

Cushion

Pear

Marquise

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Cathedral Channel Set Ring

$1,840+
$1,840 USD

Oval Cathedral Pave Ring

$1,710+
$1,710 USD

Radiant Cut Double Prong Cathedral

$1,440+
$1,440 USD

All Center Shapes

Princess Cut Cathedral Ring

$1,390+
$1,390 USD

Princess Cut Pave Cathedral Ring

$1,690+
$1,690 USD

Slim Pave Cathedral Engagement Ring

$1,690+
$1,690 USD

Radiant Cut Slim Pave Cathedral

$1,690+
$1,690 USD

Pear Cut Slim Pave Cathedral

$1,690+
$1,690 USD

Marquise Cut Slim Pave Cathedral

$1,740+
$1,740 USD

Cushion Cut Slim Pave Cathedral

$1,690+
$1,690 USD

Wide Cathedral Engagement Ring

$1,590+
$1,590 USD

Radiant Cut Wide Cathedral

$1,590+
$1,590 USD

Princess Cut Wide Cathedral

$1,590+
$1,590 USD

Pear Cut Wide Cathedral

$1,590+
$1,590 USD

Marquise Cut Wide Cathedral

$1,590+
$1,590 USD

Emerald Cut Wide Cathedral

$1,590+
$1,590 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.