Platinum Cathedral Engagement Rings

Celebrate your love, and honor your values with a beautiful platinum cathedral engagement ring.

Emerald Cut East-West Cathedral Bezel

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

6 Prong Cathedral Bead Set Ring

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

Cathedral Bezel Engagement Ring

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

Radiant Cut Sleek Cathedral Ring

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

Pear Cut Sleek Cathedral Ring

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

Cathedral Hidden Halo Ring

Regular price
$1,760+
Regular price
Sale price
$1,760 USD

Old Mine Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Princess Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Asscher Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Emerald Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Radiant Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Pear Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Oval Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Cushion Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Marquise Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Round Tulip Cathedral Ring

Regular price
$1,590+
Regular price
Sale price
$1,590 USD

Platinum cathedral engagement rings

Platinum Cathedral Engagement Ring Collection: If you’re looking for an engagement ring with purpose-driven craftsmanship, you’re in the right place. At Plum Diamonds, the value of an engagement ring is based on more than the cut, color, and clarity. Its impact on the planet also adds to the value. Because you shouldn’t have to compromise on your beliefs to own a high-quality engagement ring. Our collection of platinum cathedral engagement rings combines beautiful designs with responsibly crafted lab grown diamonds and sustainably sourced platinum durable enough to last as long as your love. 


Whether you’re drawn to classic designs like our Oval Sleek Cathedral Ring or prefer something more opulent, like the Oval Three Stone Trellis Ring, you can enjoy both beauty and eco-consciousness in this collection. Each lab grown diamond is created with significantly less environmental impact and fewer ethical concerns, all without sacrificing the quality you deserve in an heirloom.


There’s another perfect partner you can find at Plum Diamonds. Once you choose the perfect platinum cathedral engagement ring, you can explore our collection of wedding rings to complete your set. Similar to the variety in designs of our platinum cathedral engagement rings, you’ll find a range of wedding band styles that add the finishing touch you desire.