FACETWIREPrice Intelligence1 Carat marquise lab-grown diamonds
Every 1 carat marquise lab-grown diamond Facet Wire tracks, sorted by live price.
Facet Wire is tracking 5 live 1 carat marquise lab-grown listings right now across 2 retailers: With Clarity (3), Frank Darling (2). Prices run from $648 to $957, with a median of $739 ($568 per carat at the median). Data refreshes nightly — last build 2026-10-17.
Cheapest live 1 carat marquise lab-grown listings
| Stone | Retailer | Carat | Color | Clarity | Cert | Price | $/ct |
|---|---|---|---|---|---|---|---|
| IGI 1.14 Carat D-VVS1 Ideal Cut Marquise Lab-Grown Diamond | With Clarity | 1.14 | D | VVS1 | IGI 819616321 | $648 | $568 |
| IGI 1.43 Carat D-VVS2 Ideal Cut Marquise Lab-Grown Diamond | With Clarity | 1.43 | D | VVS2 | IGI 839695667 | $673 | $471 |
| IGI 1.45 Carat F-VVS2 Ideal Cut Marquise Lab-Grown Diamond | With Clarity | 1.45 | F | VVS2 | IGI 792698694 | $739 | $510 |
| IGI 1.49 Carat E-VVS2 Very Good Cut Marquise Lab-Grown Diamond | Frank Darling | 1.49 | E | VVS2 | IGI 792654341 | $935 | $627 |
| IGI 1.49 Carat D-VVS2 Very Good Cut Marquise Lab-Grown Diamond | Frank Darling | 1.49 | D | VVS2 | IGI 795603475 | $957 | $642 |
Frequently asked questions
How much does a marquise lab-grown diamond cost?
Across 5 live listings tracked by Facet Wire, marquise lab-grown diamonds run from $648 to $957, with a median price of $739 ($568 per carat). The cheapest tracked right now is a 1.14 ct stone at With Clarity for $648.
Which retailer is cheapest for marquise lab-grown diamonds?
It changes nightly — that is the point of Facet Wire. The table on this page is sorted by live price across With Clarity, Frank Darling, and the same certified stone often appears at several retailers with a real price gap.
Are marquise diamonds good value?
Marquise stones are priced off live market data here, not list prices. Compare the per-carat column: at the median, marquise lab-grown diamonds run $568 per carat across our tracked retailers.
How often do these prices update?
Facet Wire re-scrapes its retailers nightly and rebuilds this page from the fresh data, so counts, medians and the cheapest listings reflect the latest run.