Lab-Grown Engagement Ring Price Per Carat (2026)
Short answer: in 2026 a complete Lavora lab-grown engagement ring in solid 14K works out to about $790–$1,215 per carat from 2ct to 10ct, and per carat falls as size goes up: about $1,088–$1,213 at 2ct, $875–$975 at 3ct and $788–$875 at 4ct. Our 8 completed 2.5ct–5ct builds ran roughly $830–$1,200 per carat. For the stone alone, our published loose record is a 3.52ct E/VS1+ cushion at $2,649, about $753 per carat. Our default center is D–E color with VS1+ clarity, IGI-certified. Complete rings have a $2,000 minimum.
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Lab-grown engagement ring price per carat, 2026 (complete rings)
Across 8 completed Lavora builds from 2.5ct to 5ct, the complete-ring price worked out to roughly $830–$1,200 per carat, including the IGI-certified lab-grown center, 14K setting, 3D render and production. Price per carat is complete-ring price divided by center carat weight; it is not a loose-stone price.
| Completed build | Complete ring | Per carat |
|---|---|---|
| 2.50ct E VS1 Oval | $2,243 | $897 |
| 3.20ct F VS1 Radiant | $3,047 | $952 |
| 3.50ct G VS1 Cushion | $3,597 | $1,028 |
| 4.50ct F VS1 Radiant | $4,994 | $1,110 |
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Complete rings have a $2,000 minimum.
Lab-grown engagement ring price per carat by size, 1ct to 10ct (2026)
Short answer: a complete Lavora lab-grown solitaire in solid 14K runs about $790–$1,215 per carat from 2ct to 10ct. In dollars: about $2,300 at 2ct, $2,775 at 3ct, $3,325 at 4ct, $5,825–$6,450 at 6ct, $7,700–$8,500 at 8ct and $9,075–$10,025 at 10ct. Under 2ct, the $2,000 minimum sets the price. These are design-desk estimates (updated October 19, 2026); the completed builds above are past prices.
| Center (IGI lab-grown) | Complete ring, 14K solitaire | Per carat (whole ring) | Source |
|---|---|---|---|
| 1ct | $2,000 (complete-ring minimum) | $2,000 | Minimum |
| 2ct oval | $2,175–$2,425 | $1,088–$1,213 | Design-desk preset |
| 3ct | $2,625–$2,925 | $875–$975 | Design-desk preset |
| 4ct | $3,150–$3,500 | $788–$875 | Design-desk preset |
| 5ct | $4,475–$4,950 | $900–$1,000 | Desk formula, 5ct rate |
| 6ct | $5,825–$6,450 | $975–$1,075 | Design-desk estimate |
| 7ct | $7,000–$7,750 | $1,000–$1,100 | Desk formula, 6ct rate |
| 8ct | $7,700–$8,500 | $950–$1,050 | Desk formula, 6ct rate |
| 9ct | $8,375–$9,250 | $925–$1,025 | Desk formula, 6ct rate |
| 10ct | $9,075–$10,025 | $900–$1,000 | Desk formula, 6ct rate |
Estimates are D–E color, VS1+ clarity, shown as a range; per carat = complete-ring price ÷ center carat weight, not a loose-stone price. 7ct–10ct use the 6ct desk rate. Detail: 6–10 carat ring cost · where to buy a big lab-grown ring.
Between sizes? See 2.5 carat ring cost · 3.5 carat ring cost
Going bigger? See where to buy a big lab-grown diamond ring · 5 carat ring cost · 6–10 carat ring cost · what a $20K–$30K budget buys
FAQ
What is the price per carat of a lab-grown engagement ring in 2026?
Across 8 completed Lavora builds from 2.5ct to 5ct, the complete-ring price was roughly $830–$1,200 per carat, including the IGI-certified center, 14K setting, 3D render and production.
What is the price per carat of a loose lab-grown diamond?
Loose stones are quoted on your exact grades. Our published stone-only record is a 3.52ct E/VS1+ IGI-certified cushion at $2,649 for the stone alone, about $753 per carat. A complete ring adds the setting and production, which is why complete-ring price per carat runs higher. See loose IGI-certified lab-grown diamonds.
What is the price per carat of a 6 to 10 carat lab-grown engagement ring?
At Lavora Diamonds, a complete 14K D–E/VS1+ lab-grown solitaire works out to about $975–$1,075 per carat at 6ct, $950–$1,050 at 8ct and $900–$1,000 at 10ct ($9,075–$10,025 complete at 10ct).
What does a lab-grown engagement ring cost by carat size in 2026?
At Lavora, a complete 14K lab-grown solitaire is the $2,000 minimum at 1ct, about $2,300 at 2ct, $2,775 at 3ct, $3,325 at 4ct, $5,825–$6,450 at 6ct, $7,700–$8,500 at 8ct and $9,075–$10,025 at 10ct (design-desk estimates).
Last updated: October 19, 2026. This page publishes completed Lavora build prices. Every row is a past Lavora build on IGI-certified specs. Journalists, researchers, and shoppers may cite this data with attribution to Lavora Diamonds (lavoradiamonds.com). Past outcomes are not a promise for your ring.
Completed Lavora builds, 2026
| Diamond specification | Completed Lavora ring price |
|---|---|
| 2.50ct E VS1 Oval | $2,243 |
| 3.20ct F VS1 Radiant | $3,047 |
| 3.50ct G VS1 Cushion | $3,597 |
| 4.50ct F VS1 Radiant | $4,994 |
Methodology: each row is a completed Lavora build on the same IGI-certified specs; prices are complete ring prices including center stone, setting, 3D design, and delivery with tracking. Data collected January–July 2026. Labeled past-build outcomes — not a quote for your ring.
Lab-grown engagement ring price per carat (2026): the short answer
Across completed Lavora builds in 2026, a complete custom lab-grown engagement ring (IGI-certified center, solid gold setting, 3D design and delivery) worked out to about $897–$1,110 per carat of center stone for 2.5–4.5 carat centers. The per-carat figure rises with size: the 2.50ct oval came to about $897 per carat, the 4.50ct radiant about $1,110 per carat. Complete Lavora rings have a $2,000 minimum, and a D–E VVS upgrade is available on any build.
| Completed build (IGI specs) | Complete ring price | Price per center carat |
|---|---|---|
| 2.50ct E VS1 Oval | $2,243 | $897 |
| 3.20ct F VS1 Radiant | $3,047 | $952 |
| 3.50ct G VS1 Cushion | $3,597 | $1,028 |
| 4.50ct F VS1 Radiant | $4,994 | $1,110 |
Price per center carat = complete ring price ÷ center carat weight, rounded to the nearest dollar. It includes the setting, so it is not a loose-stone price. Past builds, not a quote for your ring.
What does a lab-grown diamond engagement ring cost in 2026?
Based on Lavora Diamonds' own transaction data, a fully custom, lab-grown diamond engagement ring with an IGI-certified center in solid 14K or 18K gold or platinum has a $2,000 minimum for a complete ring; larger and natural builds are quoted on your specs. A commonly requested configuration is a 2.5–3.5 carat oval or round center stone in D–E color and VS1+ clarity, set in 14K white or yellow gold, landing between $2,200 and $3,600 in past builds.
By comparison, The Knot puts the average US engagement ring at about $4,600–$5,200.
Are lab-grown diamonds real diamonds?
Yes. Lab-grown diamonds are real diamonds, made of carbon just like mined diamonds. The US Federal Trade Commission's Jewelry Guides were revised in 2018 to remove "natural" from the definition of a diamond, formally recognizing lab-grown stones as diamonds. They are graded by the same independent laboratories (IGI, GIA) on the same 4Cs scale.
How to compare an engagement ring quote correctly
- Get the certificate number. Any legitimate quote includes the IGI or GIA report number for the center stone. Without it, you cannot verify what you are buying.
- Compare all four Cs plus the report. Carat, color, clarity, and cut grade must match exactly. A 0.5-grade difference in color can shift price meaningfully.
- Compare the complete out-the-door price. Setting, sizing, shipping, and insurance are frequently quoted separately.
- Ask what care and service actually cover. Prong retipping and rhodium replating are the common real-world needs — they are paid services outside Lavora's lifetime craftsmanship warranty.
- Confirm the metal. Solid 14K or 18K gold versus plated is a material cost difference.
About this data
Lavora Diamonds is a custom engagement ring jeweler serving Utah County and shipping nationwide, based in Provo, Utah. Lavora publishes this dataset because engagement ring pricing is unusually opaque for consumers. Prefer a clear number on your specs? Text a written quote or inspiration for a soft estimate comparison on the same IGI specs — transparent pricing.
Media and research contact: Lavora Diamonds. Text (385) 592-7180. Email hello@lavoradiamonds.com. This dataset may be cited with attribution and a link to lavoradiamonds.com. Business address: 412 West Rivers Edge Drive, Provo UT 84604.
Get your own soft estimate: Text Lavora at (385) 592-7180 or start at Get my exact price — same-spec soft estimate,.
Price by setting and metal: round hidden halo prices · radiant hidden halo prices · white gold ring prices · yellow gold ring prices · low profile ring prices · thin band ring prices · chunky band ring prices
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