Cathedral Cushion Cut Engagement Rings

Explore lab grown cathedral cushion cut engagement rings that are radiant, responsible, and a declaration of love.

Cushion Tulip Cathedral Ring

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

Cushion Cut Sleek Cathedral Ring

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

Cushion Cut Split Cathedral Bezel Ring

Regular price
$1,790+
Regular price
Sale price
$1,790 USD

Cushion Three Stone Cathedral

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

Cushion Cut Vintage Peekaboo Ring

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

East-West Elongated Cushion Cathedral Ring

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

Cushion Cut Sleek Pave Cathedral

Regular price
$1,690+
Regular price
Sale price
$1,690 USD

Cushion Cut Wide Cathedral

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

Cushion Cut Cathedral Bezel Ring

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

Cushion Cut Cathedral Pave Ring

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

Cushion Cut Cathedral Ring

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

Cushion Cut Cathedral Pave Ring

Regular price
$1,740+
Regular price
Sale price
$1,740 USD

Cathedral cushion cut engagement rings

Cushion Cut Cathedral Engagement Ring Collection: Choosing a cushion cut cathedral engagement ring from Plum Diamonds means more than how the ring looks; it’s about how it makes you feel. Our collection of cathedral cushion cut engagement rings was designed with that intention at its core. We believe a beautiful engagement ring shouldn’t just reflect your love but your values, which is why every design is crafted without the ethical compromises often tied to traditional diamonds. As you explore this collection and get to know Plum Diamonds, you’ll see how possible it is to create a sustainable heirloom you can be proud to wear for a lifetime. 

At Plum Diamonds, sustainability is woven into every detail of our cathedral cushion cut engagement rings. The lab diamonds, created in our sustainable facility, offer exceptional clarity without the environmental and human costs of traditional mining, while responsibly sourced precious metals ensure each setting is built with care from start to finish. When you choose a cushion cut cathedral setting from Plum Diamonds, you’re choosing more than a style, you're choosing an heirloom that reflects your love, honors your values, and contributes to a future you can feel proud of.

Explore the collection to discover how a cathedral cushion cut engagement ring from Plum Diamonds helps you celebrate your love while protecting the planet. Or, work with our team to start customizing your dream cathedral cushion cut engagement ring.