5 Carat Radiant Cut Lab-Grown Engagement Ring Cost (2026)

By Lavora Diamonds, Provo, Utah. Updated October 19, 2026.

How much does a 5 carat radiant cut lab-grown engagement ring cost in 2026?

Short answer: at Lavora Diamonds, a complete 5 carat E–F/VVS2 radiant cut lab-grown solitaire in solid 14K gold is estimated at $4,475–$4,950, including the IGI-certified center, the custom setting, your 3D render and production. Our closest real build, a 4.50ct F VS1 radiant, came to $4,994 complete. Complete engagement rings have a $2,000 minimum.

Radiant cut ring prices from 3 to 7 carats

Radiant center (lab-grown, IGI)	Complete ring, 14K solitaire	Source
3ct · F/VS1	$2,175–$2,550	Ring price estimator
4ct · E–F/VVS2	$3,150–$3,500	Design-desk preset
5ct · E–F/VVS2	$4,475–$4,950	Desk estimate
6ct · E–F/VVS2	$5,825–$6,450	Desk estimate
7ct · E–F/VVS2	$7,000–$7,750	Desk estimate
4.50ct F VS1 radiant	$4,994	Completed ring
3.20ct F VS1 radiant	$3,047	Completed ring

Our design-desk rates are per carat, not per shape, so a radiant prices like any other shape of the same size and grade on the desk; the exact stone you choose sets the final number. Desk rows are (setting + IGI-certified diamond + insured shipping) × 3.15, shown as a ±5% range. Hidden halos, pavé bands, 18K gold and platinum are quoted on your specs. Completed prices are past builds, not a quote.

Stepping from 4ct to 5ct adds about $1,325–$1,450 on our estimates, and 6ct adds about $1,350–$1,500 more. See 5 carat ring cost and 6–10 carat ring cost for every shape.

What to check on a 5 carat radiant

• Length-to-width ratio. Radiants range from nearly square to clearly elongated; pick the outline on your 3D render.
• Face-up size in millimeters. Two 5ct radiants can face up differently depending on depth, so compare measurements on the IGI report, not just carat weight.
• Color. Our desk estimates use E–F color; ask to see the IGI report for any stone you are quoted.
• Clarity. Our standard is VS1 or better on every center.
• Corners and prongs. Radiants have cropped corners; your render shows how the prongs sit before anything is made.

Real Lavora radiant and big-stone builds

• 4.50ct F VS1 radiant: $4,994 complete.
• 3.20ct F VS1 radiant: $3,047 complete.
• Several 5ct lab-grown engagement rings, and a two-stone toi et moi with two 3.5ct lab-grown diamonds, a hidden halo and a pavé band: over 8 carats total.

Past Lavora builds (price index), not a quote for your ring. The 4.50ct came in just above today's 5ct desk range because past builds vary with the exact stone and the market when they were made.

How ordering works

1. Text us. Send a photo or screenshot of the ring you want, your carat and your budget to 385-592-7180. A private soft quote comes back.
2. See it first. Your 3D render arrives in about 24–48 hours for a $50 design fee that is fully refundable and credited toward your ring. Ask for revisions until it is right.
3. Production. Your ring is made in 4–5 weeks after you approve the render. A $250 rush (14–21 days) is available. Production begins after 3D approval and payment.
4. Delivery. US shipping is free and fully insured, and engraving is complimentary.

Every lab-grown center comes with an IGI certificate, and our clarity standard is VS1 or better. Settings are made in 14k or 18k gold or platinum. Every ring comes with a Lifetime craftsmanship warranty, plus free resizing within the first 60 days. 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.

FAQ

How much is a 5 carat radiant cut lab-grown engagement ring?

At Lavora Diamonds, a complete 5 carat E–F/VVS2 radiant cut lab-grown solitaire in solid 14K gold is estimated at $4,475–$4,950. A completed 4.50ct F VS1 radiant came to $4,994 complete.

Does a radiant cost more than an oval at 5 carats?

Not on our design desk: the desk rate is per carat, not per shape, so a 5ct E–F/VVS2 radiant and a 5ct E–F/VVS2 oval share the same 14K solitaire estimate. The exact stone you pick sets the final price.

What does a 4 carat radiant lab-grown ring cost?

A complete 4ct E–F/VVS2 radiant solitaire in 14K gold is estimated at $3,150–$3,500 at Lavora, and a completed 4.50ct F VS1 radiant came to $4,994.

Is a 5 carat lab-grown radiant certified?

Every lab-grown center comes with an IGI certificate, and our clarity standard is VS1 or better. Check the report number at igi.org before you pay.

How long does a custom 5 carat radiant ring take?

Your 3D render arrives in about 24–48 hours for a $50 design fee that is fully refundable and credited toward your ring. Production takes 4–5 weeks after approval, and a $250 rush (14–21 days) is available.

See also: pear and radiant prices · 5 carat ring cost · 6–10 carat ring cost · where to buy a big lab-grown ring · ring price estimator

Lavora Diamonds · 412 West Rivers Edge Drive, Provo UT 84604 · text 385-592-7180