2.5 carat round lab-grown engagement ring price

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

Short answer: at Lavora Diamonds, a 2.5 carat round lab-grown solitaire (D–E color, VS1+ clarity) in 14K yellow gold is estimated at $2,400–$2,650 complete on our design desk, and $3,300–$3,650 with a pavé band on our ring price estimator. 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 round prices like any other shape of the same size and grade on the desk; the exact stone you choose sets the final number. Our default center is D–E color with VS1+ clarity, quoted on the exact stone you choose. A 2.0ct D–E/VS1+ round solitaire in 14K yellow gold is $2,175–$2,425, and a 3.0ct D–E/VS1+ round solitaire is $2,625–$2,925 on our ring price estimator. A hidden halo, 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 round price guide

Build	Price	Source
2.5ct · D–E/VS1+ · 14K yellow · solitaire (desk rates are per carat, not per shape)	$2,400–$2,650	Ring price estimator
2.5ct round · D–E/VS1+ · 14K yellow · pavé band	$3,300–$3,650	Ring price estimator
2.0ct round · D–E/VS1+ · 14K yellow · solitaire	$2,175–$2,425	Ring price estimator
3.0ct round · D–E/VS1+ · 14K yellow · solitaire	$2,625–$2,925	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 round?

A round brilliant spreads its weight evenly in a circle. Measurements below come from IGI-graded lab-grown stones in our supplier feed, October 2026.

Center	Face-up size
2ct round	about 8.0–8.2 mm across
2.5ct round	about 8.6–8.9 mm across
3ct round	about 9.2–9.4 mm across

A 2.5 carat round is about half a millimeter to a millimeter wider than a 2 carat round. Compare millimeters, not just carats, and check the diameter on your 3D render.

Buying tips

• Cut grade: IGI reports give round brilliants an overall cut grade. Ask for the cut grade on the exact stone, because it drives sparkle more than a small color or clarity step.
• Clarity: VS1+. VS1 is our floor.
• Grade vs. setting: a pavé band adds more to a 2.5 carat round than the step from 2 to 2.5 carats does on our estimator, so price the setting and the stone separately.
• Other sizes: see 2 carat round prices and 3 carat round 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 round questions

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

At Lavora Diamonds, a 2.5 carat round lab-grown solitaire (D–E color, VS1+ clarity) in 14K yellow 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 is a 2.5 carat round with a pavé band?

On our ring price estimator, a 2.5ct D–E/VS1+ round with a pavé band in 14K yellow gold is $3,300–$3,650 complete.

Should I buy a 2, 2.5 or 3 carat round?

Price all three. On our ring price estimator, a 2.0ct D–E/VS1+ round solitaire in 14K yellow gold is $2,175–$2,425, a 2.5 carat solitaire is estimated at $2,400–$2,650, and a 3.0ct D–E/VS1+ round solitaire is $2,625–$2,925.

How big is a 2.5 carat round diamond?

Based on IGI-graded lab-grown rounds in our supplier feed in October 2026, a 2.5 carat round measures about 8.6–8.9 mm across, compared with about 8.0–8.2 mm for a 2 carat round.

Can I get a 2.5 carat round 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 round 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 round prices · 3 carat round prices · oval vs round prices · 2.5 carat ring cost · ring price estimator

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