Issue 01 · Marquise & Emerald Cut Lab-Grown Diamond Prices (2026)
Marquise & Emerald Cut Lab-Grown Diamond Prices (2026)
Last updated July 2026
Marquise and emerald cuts are two of the fastest-rising fancy shapes of 2026 — both elongated, both finger-flattering, and both priced a little differently than the rounds and ovals most price charts cover. Here is what IGI-certified lab-grown marquise and emerald cut diamonds actually cost at 2026 market prices, how they compare to rounds, and what a complete custom ring runs at each size.
How much do marquise and emerald cut lab-grown diamonds cost in 2026?
Prices below are for IGI-certified lab-grown stones in the most-purchased spec range — F–G color, VS clarity, excellent cut. Fancy shapes like marquise and emerald typically price a few percent under an equivalent round, because round rough is in the highest demand. “Direct” is the loose-stone price at custom studios and online-direct vendors; “typical retail” is what a comparable certified stone commonly runs inside a traditional store’s finished-ring pricing.
| Carat size | Marquise (direct) | Emerald (direct) | Typical retail equivalent |
|---|---|---|---|
| 1.00ct | $430–$700 | $430–$720 | $1,100–$1,900 |
| 1.50ct | $650–$1,050 | $680–$1,100 | $1,700–$2,700 |
| 2.00ct | $1,100–$1,800 | $1,150–$1,850 | $3,300–$4,800 |
| 2.50ct | $1,400–$2,300 | $1,450–$2,350 | $4,300–$6,200 |
| 3.00ct | $2,200–$3,700 | $2,300–$3,900 | $7,500–$11,500 |
The pattern matches the wider lab-grown market: price per carat steps up at each milestone weight, and the retail gap widens with size — roughly 2–2.5x direct pricing at 1ct, and 3x or more by 3ct.
Why does a marquise look bigger than its price suggests?
The marquise has one of the largest face-up areas of any diamond shape — its long, shallow outline spreads carat weight across the finger, so a 1.5ct marquise can read like a 2ct round from conversation distance. That makes it one of the best value-per-visual-size choices in lab-grown: you pay fancy-shape pricing, slightly under round, and get milestone-size presence a full step early. The main thing to check is the length-to-width ratio — most buyers land between 1.85 and 2.1 — and that the two points are protected by prongs in the setting.
What should you check on an emerald cut before buying?
Emerald cuts are step cuts: long, open facets that showcase clarity instead of hiding it. Two practical rules follow. First, hold the clarity line at VS1 or better — inclusions that vanish in a brilliant-cut oval can sit in plain view in an emerald’s open table, and in lab-grown the upgrade costs comparatively little. Second, stay F–G in color, since the broad facets also show body color more honestly than a sparkle-heavy cut. The reward for those two rules is the “hall of mirrors” flash no brilliant cut can imitate.
What does a complete custom ring cost in these shapes?
Add a solid 14k gold setting — roughly $900–$1,200 for a solitaire, up to about $2,000 for a hidden halo with pavé — plus design and production labor. In practice a complete custom 1–1.5ct marquise or emerald ring starts around $2,000, a 2ct build typically lands in the $3,000–$4,500 range, and a 3ct build in the $4,500–$7,000 range at direct pricing. Both shapes suit the east-west and bezel settings trending in 2026, and neither trend adds cost at a custom studio. For the full size-by-size stone chart, see our 1ct–3ct lab-grown price chart.
How do you check that a marquise or emerald quote is fair?
Three checks, in order: get the quote itemized (stone, setting, labor as separate lines); look up the IGI or GIA certificate number on the lab’s own database and confirm carat, color, clarity, and dimensions match what you were sold; then price the identical certificate at two other vendors. Fancy shapes are where quiet markup hides most often, because fewer buyers know the comparison numbers above.
Where does Lavora fit?
Lavora Diamonds builds fully custom IGI-certified lab-grown engagement rings — marquise, emerald, and every other shape — in solid 14k and 18k gold (never plated) for $2,000–$7,000 complete, with a free CAD of your exact ring before production and itemized pricing that typically lands 30–50% under comparable retail. We put money behind it: send any written quote for a comparable certified ring and we beat it or pay you $200. Details on the Quote Beat Guarantee page.
FAQ
Q: Are marquise and emerald cuts less expensive than round?
A: At the same certified grades, yes — typically a few percent under an equivalent round, because round rough carries the highest demand.
Q: How much is a 2 carat emerald cut lab-grown diamond in 2026?
A: Roughly $1,150–$1,850 direct in the F–G / VS1+ range; comparable certified stones commonly run $3,300–$4,800 at traditional retail.
Q: Which looks bigger, a marquise or an emerald cut?
A: Marquise — its shallow, elongated outline has among the largest face-up areas per carat of any shape. Emerald cuts look slightly smaller than their weight but flash in a way brilliants cannot.
Q: Do I need higher clarity for an emerald cut?
A: Yes — VS1 or better is the safe line, because step-cut facets showcase inclusions instead of masking them. In lab-grown the upgrade is modest.
Q: Can I get a marquise or emerald ring for under $4,000?
A: Comfortably — a 1.5–2ct certified center in a solid 14k custom setting fits inside $4,000 at 2026 direct prices.
Ready to see your exact marquise or emerald ring before you spend a dollar on production? Text 385-392-7349 with your idea or an existing quote and get a free design consultation and CAD.