How much does a 3.00 to 4.99ct natural marquise diamond cost?

As of October 2026, 3.00 to 4.99ct natural marquise diamonds range from £131 GBP/ct to £30,406 GBP/ct, with an average of £11,669 GBP/ct.

What is the price range for 3.00 to 4.99ct natural marquise diamonds?

As of October 2026, the lowest listed price is £131 GBP per carat and the highest is £30,406 GBP per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 3.00 to 4.99ct natural marquise diamonds are available?

There are 8,645 active natural marquise listings between 3.00 to 4.99ct across 100+ retailers in the Carat Hunter index, refreshed daily.

How much can I save by comparing retailers for a 3.00 to 4.99ct natural marquise diamond?

Approximately 42% of these diamonds are available at multiple retailers, with an average price spread of 37% between the cheapest and most expensive listing of the same stone.

Natural Marquise Diamonds, 3.00 to 4.99ct

Quick answer

As of October 2026, there are 8,645 listings of natural marquise diamonds between 3.00 to 4.99ct from at least 53 retailers. A typical stone in this range costs about £44,343 GBP in total, or £11,669 GBP per carat, and most listings sit between £131 GBP and £30,406 GBP per carat. About 42% of these stones are listed by more than one retailer, and the same stone is priced 37% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is H to I VVS2 at £10,208 GBP per carat across 151 listings. The same shape in lab grown form runs about £638 GBP per carat, roughly 95% less.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Marquise natural stones in the index: 2,268 USD per carat, +10.8% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Browse 8,645 diamonds in Explorer

Price Distribution

LowHigh

Colour	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$28K	$23K	$27K	$26K	$26K	$20K	$15K	-
F-G	$22K	$26K	$22K	$23K	$22K	$19K	$15K	$1,931
H-I	$16K	$19K	$14K	$15K	$17K	$15K	$11K	$12K
J-K	-	$12K	$12K	$14K	$9,807	$11K	$10K	-
L-M	-	-	-	$6,518	$6,165	$5,055	$4,200	-
N+	-	-	$1,525	$6,439	$201	-	$4,716	$3,100

Price by Colour & Clarity

Average price per carat for 3.00 to 4.99ct natural marquise diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	IF	53	£20,989 GBP	22%
D-E	SI1	657	£15,174 GBP	20%
D-E	SI2	679	£11,196 GBP	38%
D-E	VS1	352	£19,451 GBP	24%
D-E	VS2	510	£19,308 GBP	23%
D-E	VVS1	91	£17,101 GBP	28%
D-E	VVS2	60	£20,526 GBP	24%
F-G	I	36	£1,450 GBP	139%
F-G	IF	50	£16,741 GBP	23%
F-G	SI1	487	£14,477 GBP	20%
F-G	SI2	840	£11,303 GBP	34%
F-G	VS1	243	£17,512 GBP	23%
F-G	VS2	362	£16,821 GBP	24%
F-G	VVS1	103	£19,185 GBP	20%
F-G	VVS2	55	£16,158 GBP	17%
H-I	I	15	£9,204 GBP	57%
H-I	IF	10	£12,199 GBP	36%
H-I	SI1	599	£11,207 GBP	50%
H-I	SI2	835	£7,988 GBP	64%
H-I	VS1	178	£11,263 GBP	36%
H-I	VS2	418	£12,792 GBP	35%
H-I	VVS1	236	£14,637 GBP	30%
H-I	VVS2	151	£10,208 GBP	33%
J-K	SI1	305	£7,926 GBP	33%
J-K	SI2	604	£7,670 GBP	51%
J-K	VS1	109	£10,678 GBP	16%
J-K	VS2	94	£7,365 GBP	32%
J-K	VVS1	74	£9,046 GBP	18%
J-K	VVS2	40	£9,294 GBP	28%
L-M	SI1	34	£3,796 GBP	20%
L-M	SI2	36	£3,154 GBP	34%
L-M	VS1	21	£4,894 GBP	31%
L-M	VS2	36	£4,630 GBP	21%
N+	I	40	£2,328 GBP	95%
N+	SI2	13	£3,542 GBP	18%
N+	VS1	41	£4,835 GBP	33%
N+	VS2	25	£151 GBP	185%
N+	VVS2	153	£1,145 GBP	63%

Explore by Specification

D FL D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 D SI2 E FL E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 E SI2 F FL F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 F SI2 G FL G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 G SI2 H FL H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 H SI2 I FL I IF I VVS1 I VVS2 I VS1 I VS2 I SI1 I SI2 J FL J IF J VVS1 J VVS2 J VS1 J VS2 J SI1 J SI2