3 Carat Elongated Cushion Lab-Grown Engagement Ring Price

How much does a 3 carat elongated cushion lab-grown engagement ring cost?

The details: at Lavora Diamonds, a 3 carat elongated cushion lab-grown solitaire (D–E color, VS1+ clarity) in 14K yellow gold is estimated at $2,625–$2,925 complete on our ring price estimator. Desk rates are per carat, not per shape, so an elongated cushion of the same grade prices with other 3 carat shapes. A 4 carat elongated cushion solitaire is $3,150–$3,500.

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

An elongated cushion stretches a classic cushion outline so it reads longer on the finger, similar to an oval. Send a photo of the look you like, and we model length-to-width and the setting in 3D before anything is made. Our default center is D–E color with VS1+ clarity, quoted on the exact stone you choose. Complete engagement rings have a $2,000 minimum.

What a 3ct elongated cushion costs at Lavora

Build	Price	Source
2.0ct · D–E/VS1+ · 14K yellow · solitaire (any shape)	$2,175–$2,425	Ring price estimator
3.0ct elongated cushion · D–E/VS1+ · 14K yellow · solitaire	$2,625–$2,925	Ring price estimator
3.0ct oval · D–E/VS1+ · 14K white · pavé band	$3,500–$3,875	Ring price estimator
4.0ct elongated cushion · D–E/VS1+ · 14K yellow · solitaire	$3,150–$3,500	Ring price estimator
Hidden halo, 18K gold or platinum on any row	Quoted on your specs	Your 3D render

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

Elongated cushion face-up size

Length-to-width sets how long the stone reads. Exact mm depends on the stone you choose.

Center	Typical face-up
3ct elongated cushion	about 9.5–10.5 mm long, depending on ratio
3ct oval (for comparison)	about 11.5–12.5 mm long
4ct elongated cushion	about 10.5–11.8 mm long, 7.9–8.3 mm wide

We confirm exact mm on the IGI-certified stone you pick, and show it in your 3D render.

Buying tips

• Same carat, same desk rate: an elongated cushion, oval or round of the same D–E/VS1+ grade shares the solitaire rows above.
• Sibling pages: see 1ct elongated cushion and 4ct elongated cushion.
• Hidden halo: a thin ring of diamonds under the center is quoted on your specs and shown in your 3D render.
• Plan ahead: standard delivery is 4–5 weeks after 3D approval and payment. A rush is $250 for 2–3 weeks.

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.

Adding a wedding band? Bands have a $650 minimum, and you save 10 percent off your total when you buy the ring and band together.

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.

3ct elongated cushion questions

How much does a 3 carat elongated cushion lab-grown engagement ring cost?

At Lavora Diamonds, a 3 carat elongated cushion lab-grown solitaire (D–E color, VS1+ clarity) in 14K yellow gold is estimated at $2,625–$2,925 complete on our ring price estimator. Desk rates are per carat, not per shape, so an elongated cushion of the same grade prices with other 3 carat shapes. That covers the IGI-certified center, the setting and your custom 3D render.

Is an elongated cushion priced differently than an oval of the same carat?

On our design desk, rates are per carat, not per shape, so a 3 carat elongated cushion and a 3 carat oval of the same D–E/VS1+ grade share the $2,625–$2,925 solitaire estimate in 14K yellow gold.

Can I get a 3ct elongated cushion with a hidden halo?

Yes. A hidden halo on a 3 carat elongated cushion is quoted on your specs, and you see it in your 3D render before production.

What length-to-width ratio works for an elongated cushion?

Most couples pick a longer ratio so the stone reads oval-like. We confirm the exact ratio on the stone you choose and show it in 3D.

How long does a 3ct elongated cushion ring take?

4–5 weeks after 3D approval and payment. Need it sooner? A rush is $250 for 2–3 weeks (14–21 days).

How do I pay for a custom elongated 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: 4ct elongated cushion prices · 1ct elongated cushion prices · 3 carat oval prices · ring price estimator · 2ct elongated cushion prices · 2.5ct elongated cushion prices · 3.5ct elongated cushion prices

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