FACETWIREPrice IntelligenceUnder 1 Carat Marquise natural diamonds
Every under 1 carat marquise natural diamond Facet Wire tracks, sorted by live price.
Facet Wire is tracking 2039 live under 1 carat marquise natural listings right now across 2 retailers: Adiamor (2038), Brian Gavin Diamonds (1). Prices run from $250 to $5,172, with a median of $821 ($1,686 per carat at the median). Data refreshes nightly — last build 2026-10-28.
Most popular / better value
Across these 2039 listings, the most common color is D (499 stones), the most common clarity is SI1 (467 stones).
Better value: I color / SI2 clarity is the cheapest well-stocked spec combination here — 12 listings at a median of $1,318 per carat.
Cheapest live under 1 carat marquise natural listings
| Stone | Retailer | Carat | Color | Clarity | Cert | Price | $/ct |
|---|---|---|---|---|---|---|---|
| 0.30 ct. Natural Marquise cut Diamond | Adiamor | 0.30 | J | VS2 | GIA 5516396788 | $250 | $833 |
| 0.30 ct. Natural Marquise cut Diamond | Adiamor | 0.30 | J | SI2 | GIA 2554550321 | $268 | $893 |
| 0.32 ct. Natural Marquise cut Diamond | Adiamor | 0.32 | I | SI1 | GIA 2556740115 | $269 | $841 |
| 0.30 ct. Natural Marquise cut Diamond | Adiamor | 0.30 | F | SI2 | GIA 6545141703 | $298 | $993 |
| 0.32 ct. Natural Marquise cut Diamond | Adiamor | 0.32 | G | SI1 | GIA 1545963126 | $301 | $941 |
| 0.32 ct. Natural Marquise cut Diamond | Adiamor | 0.32 | J | VVS1 | GIA 2544701010 | $306 | $956 |
| 0.28 ct. Natural Marquise cut Diamond | Adiamor | 0.28 | F | SI2 | GIA 1557943732 | $307 | $1,096 |
| 0.30 ct. Natural Marquise cut Diamond | Adiamor | 0.30 | I | VS2 | GIA 6452949913 | $307 | $1,023 |
| 0.30 ct. Natural Marquise cut Diamond | Adiamor | 0.30 | E | SI1 | GIA 7551862678 | $309 | $1,030 |
| 0.32 ct. Natural Marquise cut Diamond | Adiamor | 0.32 | G | SI2 | GIA 2497400088 | $326 | $1,019 |
| 0.31 ct. Natural Marquise cut Diamond | Adiamor | 0.31 | G | SI2 | GIA 6382751514 | $326 | $1,052 |
| 0.30 ct. Natural Marquise cut Diamond | Adiamor | 0.30 | F | SI2 | GIA 2556737563 | $328 | $1,093 |
Frequently asked questions
How much does a marquise natural diamond cost?
Across 2039 live listings tracked by Facet Wire, marquise natural diamonds run from $250 to $5,172, with a median price of $821 ($1,686 per carat). The cheapest tracked right now is a 0.30 ct stone at Adiamor for $250.
Which retailer is cheapest for marquise natural diamonds?
It changes nightly — that is the point of Facet Wire. The table on this page is sorted by live price across Adiamor, Brian Gavin Diamonds, 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 natural diamonds run $1,686 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.