FACETWIREPrice Intelligence1 Carat princess lab-grown diamonds
Every 1 carat princess lab-grown diamond Facet Wire tracks, sorted by live price.
Facet Wire is tracking 3 live 1 carat princess lab-grown listings right now across 2 retailers: Friendly Diamonds (2), Frank Darling (1). Prices run from $534 to $919, with a median of $534 ($379 per carat at the median). Data refreshes nightly — last build 2026-10-18.
Most popular / better value
Across these 3 listings, the most common color is E (1 stones), the most common clarity is VS1 (3 stones).
Cheapest live 1 carat princess lab-grown listings
| Stone | Retailer | Carat | Color | Clarity | Cert | Price | $/ct |
|---|---|---|---|---|---|---|---|
| 1.43 ct Princess E VS1 Lab-Grown Diamond | Friendly Diamonds | 1.43 | E | VS1 | — | $534 | $373 |
| 1.41 ct Princess D VS1 Lab-Grown Diamond | Friendly Diamonds | 1.41 | D | VS1 | — | $534 | $379 |
| Lab Diamond [ID: 100752430002ABD] | Frank Darling | 1.42 | F | VS1 | IGI LG814627506 | $919 | $647 |
Frequently asked questions
How much does a princess lab-grown diamond cost?
Across 3 live listings tracked by Facet Wire, princess lab-grown diamonds run from $534 to $919, with a median price of $534 ($379 per carat). The cheapest tracked right now is a 1.43 ct stone at Friendly Diamonds for $534.
Which retailer is cheapest for princess lab-grown diamonds?
It changes nightly — that is the point of Facet Wire. The table on this page is sorted by live price across Friendly Diamonds, Frank Darling, and the same certified stone often appears at several retailers with a real price gap.
Are princess diamonds good value?
Princess stones are priced off live market data here, not list prices. Compare the per-carat column: at the median, princess lab-grown diamonds run $379 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.