What Custom Lab-Grown Engagement Rings Actually Cost — Real Lavora Builds (2026)

Compiled by Lavora Diamonds, Provo, Utah. Last evidence review September 7, 2026.

Complete rings have a $2,000 minimum.

Why this page exists

Almost nobody publishes what a custom engagement ring actually costs. You get “prices vary” and a contact form. That makes it nearly impossible to tell whether a quote you were handed is fair.

So here are documented Lavora price records with the specifications and IGI report numbers available in the underlying files. Records that cannot be reconciled across price, specifications, and ring identity are excluded.

Methodology and limits — read this before citing

• Sample size: 3 completed custom rings plus 1 stone-only reference. This is a small descriptive sample, not a market average.
• Unless a row says otherwise, prices are complete-ring totals: certified center stone, setting, metal, custom 3D design, and production. One exception: the 3.52ct cushion figure is a certified stone-only price with no setting included, and is labelled as such in the table.
• All listed center stones are lab-grown and come with an IGI certificate. Report numbers are listed where the certificate is on file; where a number is not listed, it is not published here.
• Lab-grown diamond wholesale pricing moves. These reflect builds priced in 2026 and are not a forward quote.
• No competitor quotes appear on this page. Only Lavora's own documented price records are included.
• A separate 4.02ct completed ring has now been reconciled from its purchase record, design sketch and proposal post. It is documented below but is not counted in this four-record comparison table.

The builds

Center stone	Color / Clarity	Setting	Price
2.00ct Marquise (approx.)	—	14K yellow gold, bezel-set solitaire	$2,149 total
3.52ct Cushion Modified Brilliant	E / VVS2	No setting — certified stone only	$2,649 stone only, no setting
3.50ct Oval	—	14K yellow gold, hidden halo, low-set basket, 3.5mm band	$2,799 total
3.16ct Oval Brilliant	D / IF	14K white gold, hidden halo, 4 double-round prongs, 4mm band	$3,249 total

Build detail

3.16ct Oval — D / Internally Flawless — $3,249 total

IGI Report No. LG768619254 (issued February 6, 2026). Oval brilliant, 3.16 ct, colour D (colourless), clarity Internally Flawless. Polish excellent, symmetry excellent, fluorescence none. Measurements 11.98 × 8.38 × 5.17 mm — a 1.43 length-to-width ratio, which is the elongated look most oval buyers are actually after.

Set in 14K white gold with a hidden halo, four double-round prongs, and a 4mm band. This is the highest-spec stone on this page. To be precise about the grading scales: D is the top of the colour scale, and Internally Flawless is the second-highest clarity grade — one step below Flawless — meaning no inclusions are visible under 10× magnification, though minor surface characteristics may be present.

3.50ct Oval, hidden halo, low-set — $2,799 total

14K yellow gold, hidden halo, low-set basket design, 3.5mm band. Custom 3D render and production included. A low-set basket keeps the ring profile closer to the finger; wedding-band fit still depends on the basket geometry.

3.52ct Cushion Modified Brilliant — E / VVS2 — $2,649 stone only

Lab-grown IGI-certified cushion modified brilliant, colour E, clarity VVS2. This figure is for the certified stone only. Setting, metal and production are not included, so it is not directly comparable to the complete-ring prices in the rest of this table.

~2.00ct Marquise, bezel solitaire — $2,149 total

Approximately 2.00 ct marquise lab-grown centre stone, 14K yellow gold, bezel-set solitaire, ring size 6. Built from an approved custom design. Carat is approximate; no certificate number is published for this build.

What this tells you about your own quote

If you have been quoted a number for a comparable certified stone and setting, the useful comparison is not the total — it is the certificate. Ask for the IGI or GIA report number, verify it at igi.org, and ask for the stone price and the setting price as two separate figures. Two rings described identically in conversation can carry very different certificates.

Frequently asked questions

How much does a 3ct oval lab-grown diamond engagement ring cost?

Across Lavora's completed 2026 builds, a 3.16ct oval in D/IF set in 14K white gold with a hidden halo was $3,249 total, and a 3.50ct oval with a hidden halo in 14K yellow gold was $2,799 total. Price is driven by the certified colour and clarity grades and the setting complexity, not by carat alone. The comparison table contains three completed-ring prices plus one stone-only reference; a separately documented 4.02ct E/VVS2 oval build was $3,349. Complete rings have a $2,000 minimum.

What is the difference between Flawless, Internally Flawless and VVS2?

Flawless (FL) is the highest clarity grade: no inclusions and no blemishes under 10× magnification. Internally Flawless (IF) is second: no inclusions, but minor surface blemishes may be present. VVS1 and VVS2 follow, with inclusions that are very difficult for a trained grader to see under 10×. None of these grades show inclusions to the unaided eye.

Are these prices guaranteed?

No. Lab-grown diamond wholesale pricing moves, and every custom ring is quoted against live stone sourcing at the time of order. These are documented 2026 price records, not a price list.

Get your own number

Price your ring here — send a screenshot of the ring she wants or a quote you already have, and get a line-by-line comparison back. Or text (385) 592-7180.