FACETWIREPrice Intelligence1.5 Carat heart lab-grown diamonds
Every 1.5 carat heart lab-grown diamond Facet Wire tracks, sorted by live price.
Facet Wire is tracking 4 live 1.5 carat heart lab-grown listings right now across 2 retailers: MiaDonna (3), Blue Nile (1). Prices run from $756 to $1,561, with a median of $1,327 ($799 per carat at the median). Data refreshes nightly — last build 2026-10-20.
Most popular / better value
Across these 4 listings, the most common color is D (3 stones), the most common clarity is VVS2 (3 stones).
Cheapest live 1.5 carat heart lab-grown listings
| Stone | Retailer | Carat | Color | Clarity | Cert | Price | $/ct |
|---|---|---|---|---|---|---|---|
| IGI 1.54 Carat K-VVS2 Very Good Cut Heart Lab-Grown Diamond | Blue Nile | 1.54 | K | VVS2 | IGI | $756 | $491 |
| 1.54 Carat Heart Shaped, Ideal Cut, D Color, VVS2 Clarity, IGI Certified Lab Grown Diamond | MiaDonna | 1.54 | D | VVS2 | IGI LG848644007 | $1,231 | $799 |
| 1.78 Carat Heart Shaped, Ideal Cut, D Color, VVS2 Clarity, IGI Certified Lab Grown Diamond | MiaDonna | 1.78 | D | VVS2 | IGI 776636584 | $1,423 | $799 |
| 1.52 Carat Heart Shaped, Ideal Cut, D Color, VVS1 Clarity, IGI Certified Lab Grown Diamond | MiaDonna | 1.52 | D | VVS1 | IGI 836616450 | $1,561 | $1,027 |
Frequently asked questions
How much does a heart lab-grown diamond cost?
Across 4 live listings tracked by Facet Wire, heart lab-grown diamonds run from $756 to $1,561, with a median price of $1,327 ($799 per carat). The cheapest tracked right now is a 1.54 ct stone at Blue Nile for $756.
Which retailer is cheapest for heart lab-grown diamonds?
It changes nightly — that is the point of Facet Wire. The table on this page is sorted by live price across MiaDonna, Blue Nile, and the same certified stone often appears at several retailers with a real price gap.
Are heart diamonds good value?
Heart stones are priced off live market data here, not list prices. Compare the per-carat column: at the median, heart lab-grown diamonds run $799 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.