2.5 carat cushion cut lab-grown engagement ring price

How much is a 2.5 carat cushion cut lab-grown engagement ring?

Short answer: at Lavora Diamonds, a 2.5 carat cushion or elongated cushion lab-grown solitaire (E–F color, VVS2 clarity) in 14K gold is estimated at $2,400–$2,650 complete on our design desk. That covers the IGI-certified center, the setting and your custom 3D render.

By Lavora Diamonds, Provo, Utah. Updated October 2026.

Our design-desk rates are per carat, not per shape, so a cushion prices like any other shape of the same size and grade on the desk; the exact stone you choose sets the final number. On our ring price estimator, a 2.5ct E–F/VVS2 solitaire in 14K yellow gold is $2,400–$2,650 and $2,700–$3,000 with a hidden halo. The square and elongated versions price the same way on the desk. A 3.0ct E–F/VVS2 elongated cushion hidden halo in 14K yellow gold is $2,900–$3,225. A pavé band, 18K gold or platinum move the number up, and your exact price comes with your 3D render. Complete engagement rings have a $2,000 minimum.

Lavora 2.5 carat cushion cut price guide

Build	Price	Source
2.5ct cushion or elongated cushion · E–F/VVS2 · 14K · solitaire	$2,400–$2,650	Design-desk estimate (same 2.5ct E–F/VVS2 row as oval and pear on our ring price estimator)
2.5ct · E–F/VVS2 · 14K yellow · hidden halo	$2,700–$3,000	Ring price estimator (oval row; desk rates are per carat, not per shape)
2ct cushion or elongated cushion · E–F/VVS2 · 14K · solitaire	$2,175–$2,425	Design-desk estimate
3.0ct elongated cushion · E–F/VVS2 · 14K yellow · hidden halo	$2,900–$3,225	Ring price estimator
Hidden halo, pavé band, 18K gold or platinum	Raises the price	Quoted on your specs

Estimator figures are ranges, not fixed prices. See our ring price estimator and completed ring prices. Your exact price comes with your 3D render.

How big is a 2.5 carat cushion?

A cushion is a brilliant cut with soft, rounded corners. The square version reads classic and compact; the elongated version stretches the outline, so it faces up longer on the finger. Measurements below come from IGI-graded lab-grown stones in our supplier feed, October 2026.

Center	Face-up size
2.5ct square cushion	about 7.7–8.1 mm long, 7.4–7.9 mm wide
2.5ct elongated cushion	about 9.1–10.1 mm long, 6.7–7.3 mm wide

At 2.5 carats, an elongated cushion measures about one and a half to two millimeters longer than a square cushion of the same weight. Compare millimeters, not just carats, and check the outline on your 3D render.

Buying tips

• Clarity: VS1+. Cushion faceting hides small inclusions well, and VS1 is our floor.
• Ratio: most 2.5 carat elongated cushions in our supplier feed run about 1.25 to 1.50 length-to-width; under about 1.10 reads square. Pick the outline you want on your 3D render.
• Facet look: some cushions show a crushed-ice look and others show larger, chunkier flashes. It is not on the certificate, so ask us to show you the stone before production.
• Other sizes: see 2 carat cushion prices and 3 carat cushion prices.

How a custom ring works at Lavora

1. Text us a photo or idea. We text back a private soft quote, usually in about 12 hours.
2. You see a 3D render first, often within 24–48 hours: $50 refundable, credited to your ring, with unlimited revisions.
3. Delivery takes 4–5 weeks after 3D approval and payment. Need it sooner? Rush 2–3 weeks, $250 (14–21 days).
4. Production begins after 3D approval and payment. Klarna and Affirm financing are available on your invoice.

Every lab-grown center is IGI-certified, VS1+ clarity. Engraving is complimentary, US shipping is free and fully insured, and every ring comes with a Lifetime craftsmanship warranty, plus free resizing within the first 60 days. The warranty covers manufacturing defects. Lavora Diamonds is online-only: you design over text and your ring ships to you. Save 10 percent off your total when you buy the ring and band together.

2.5 carat cushion cut questions

How much is a 2.5 carat cushion cut lab-grown engagement ring?

At Lavora Diamonds, a 2.5 carat cushion or elongated cushion lab-grown solitaire (E–F color, VVS2 clarity) in 14K gold is estimated at $2,400–$2,650 complete on our design desk, including the IGI-certified center, setting and your custom 3D render. Your exact price comes with your 3D render.

How much does a hidden halo add to a 2.5 carat cushion?

On our ring price estimator, a 2.5ct E–F/VVS2 solitaire in 14K yellow gold is $2,400–$2,650 and the same center with a hidden halo is $2,700–$3,000. Desk rates are per carat, not per shape, so a cushion prices the same way.

Does an elongated cushion cost more than a square cushion?

Not on our design desk. Rates are per carat, not per shape, so the square and elongated versions price the same way at the same size and grade. The exact stone you choose sets the final number.

How big is a 2.5 carat cushion cut diamond?

Based on IGI-graded 2.5 carat lab-grown cushions in our supplier feed in October 2026, a square cushion measures about 7.7–8.1 mm long and 7.4–7.9 mm wide, and an elongated cushion about 9.1–10.1 mm long and 6.7–7.3 mm wide.

Can I get a 2.5 carat cushion in platinum?

Yes. Platinum and 18K gold are offered and are quoted on your specs; both cost more than the 14K gold in our estimates. We show the metal in your 3D render before production.

How do I pay for a custom 2.5 carat cushion ring?

Production begins after 3D approval and payment. Klarna and Affirm financing are available on your invoice. Complete engagement rings have a $2,000 minimum.

See also: 2 carat cushion prices · 3 carat cushion prices · 2.5 carat ring cost · oval vs elongated cushion · ring price estimator

Lavora Diamonds · online custom jeweler based in Provo, Utah · text (385) 592-7180