Cushion Cut Lab Grown Diamond Engagement Rings

A cushion cut has softly rounded corners and larger facets, producing a broad rolling sparkle rather than pinpoint fire. It is the shape people choose when a round reads too formal.

Buying Guide

The look people describe as candlelight comes from facet size, not from any grading property. A cushion’s facets are larger and fewer than a round’s, so light returns in broad soft flashes rather than in sharp points — warmer, more antique, and noticeably less clinical. Rounded corners also mean there is nothing to protect, which makes a cushion one of the more forgiving outlines in daily wear.

Cushion and radiant share an outline and behave completely differently under light, which is the single most common confusion in this part of the range: a cushion rolls, a radiant flashes. Most people know which they prefer within seconds of seeing both, so it is worth looking rather than reading. Because the faceting scatters light, a cushion is forgiving on clarity, and carat weight shows more than a grade step does. Everything here is IGI-certified in D–F color, VVS–VS clarity and Excellent cut, made to order.

Frequently Asked Questions

What does a cushion cut look like in person?

Softer and warmer than a round. The rounded corners and larger facets produce a broad, pillowy scintillation rather than sharp pinpoints of fire — the effect sometimes called candlelight sparkle. It is the shape people choose when a round reads too formal. We carry 129 cushion pieces across the range, in every metal.

Cushion or radiant — which should I choose?

Choose on light behaviour, not outline. Both are roughly square with softened corners, but a cushion has rounded corners and a gentler, rolling sparkle, while a radiant has cropped straight corners and flashes harder. We carry 129 cushion and 78 radiant designs across the range, and most shoppers know which they prefer within seconds of seeing both.

What is the difference between a cushion and a radiant cut?

Cushion has softly rounded corners and a broad, pillowy scintillation that reads warmer and more antique. Radiant has cropped straight corners and brilliant faceting underneath, so it flashes harder and looks more modern. We carry 129 cushion and 78 radiant pieces across the range; shoppers who like the outline of one often prefer the light behaviour of the other.

Which diamond shape suits a smaller finger?

Elongated shapes flatter a narrow finger. Oval, marquise and pear draw the eye lengthwise and make the finger read longer. A wide shape at high carat can overwhelm a slim band, so if you are set on a cushion or a round we recommend keeping the band proportionate rather than dropping carat weight.

Will my lab grown diamond hold its value?

Lab-grown diamonds are bought to be worn, not traded, and we would rather say that plainly. Production has scaled quickly and prices have fallen, and the gap against mined stones has widened with them: the jewelry insurer BriteCo put it at 72.8% per carat in 2025, against 26.6% in 2019. Buy the piece for the piece. Our lifetime manufacturing warranty covers the workmanship for as long as you own it.

  • IGI certification Every Beyond Carat diamond is graded by IGI, and the report ships in the box.
  • Flexible payments Affirm monthly payments and Shop Pay Installments at checkout.
  • Returns 65-day returns, measured from the date your order ships. Free prepaid, insured UPS return label on U.S. orders. Free ring resizing for a full year.
  • Warranty Lifetime manufacturing warranty covering defects in materials and workmanship.

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