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Cushion vs Emerald Cut Lab-Grown Diamonds
The clearest difference is light behaviour. A cushion cut scatters a warm, pillowy glow through its brilliant faceting, while an emerald cut throws clean, hall-of-mirrors step flashes. Choose cushion for soft, vintage-leaning character; choose emerald for understated, clarity-forward elegance. Both lab-grown stones start from $990 AUD at 1ct and certify to a VS1 minimum.
Cushion vs Emerald at a glance
| Cushion | Emerald | |
|---|---|---|
| Faceting | brilliant cut | step cut |
| Character | warm, pillowy glow | clean hall-of-mirrors flashes |
| Length-to-width | 1.00 to 1.20 | 1.30 to 1.50 |
| Face-up size | compact, true to carat | elongated, reads larger |
| Durability | rounded corners, very durable | rounded corners, shows inclusions |
| What to screen for | chunky vs crushed-ice faceting | eye-clean clarity (VS1+) |
| Starting price (1ct VS1) | $990 AUD | $990 AUD |
| Best for | a soft, vintage-leaning character | understated elegance and clarity-forward beauty |
The key difference
Because the emerald is a step cut with open, mirror-like facets, its long flashes leave nowhere for inclusions to hide, so eye-clean clarity at VS1 or above matters more than it does for the cushion, whose busier brilliant faceting masks small inclusions. The two also read differently in proportion: the cushion sits near-square at a 1.00 to 1.20 length-to-width, while the emerald elongates the finger at 1.30 to 1.50. Both have rounded corners, making them more durable in everyday wear than sharp-cornered shapes.
Which should you choose?
Choose the cushion cut for a soft, vintage-leaning character. Choose the emerald cut for understated elegance and clarity-forward beauty. Both are sourced to your brief, certified by IGI or GIA, and priced AU-inclusive.
Common questions
Is a cushion or emerald cut better value at the same price?
Both begin at $990 AUD for a 1ct VS1 lab-grown stone, so the entry price is identical. Value then comes down to clarity needs. An emerald cut's step facets reveal inclusions, so VS1 or higher helps it stay eye-clean. A cushion's brilliant faceting hides minor inclusions, giving you more flexibility within the same outlay.
Which cut looks larger on the finger?
The emerald tends to look longer because its length-to-width runs 1.30 to 1.50, elongating both the finger and the stone's silhouette. The cushion sits closer to square at 1.00 to 1.20, reading fuller and softer rather than elongated. At equal carat, the emerald can appear larger lengthwise, while the cushion looks more rounded and compact.
Which cut is more durable for daily wear?
Both are very wearable. The cushion and emerald each have rounded corners, which resist chipping better than sharp-cornered shapes, so both suit everyday rings. The cushion's softened outline makes it particularly hard-wearing. The emerald is durable too, though its step cut shows inclusions more readily, so prioritise eye-clean VS1-plus clarity alongside the setting you choose.