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

As of September 2026, 3.00 to 4.99ct natural marquise diamonds range from £159 GBP/ct to £35,111 GBP/ct, with an average of £12,596 GBP/ct.

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

As of September 2026, the lowest listed price is £159 GBP per carat and the highest is £35,111 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 4,852 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 22% of these diamonds are available at multiple retailers, with an average price spread of 67% between the cheapest and most expensive listing of the same stone.

Natural Marquise Diamonds, 3.00 to 4.99ct

Quick answer

As of September 2026, there are 4,852 natural marquise diamonds between 3.00 to 4.99ct listed by at least 48 retailers. A typical stone in this range costs about £47,867 GBP in total, or £12,596 GBP per carat, and most listings sit between £159 GBP and £35,111 GBP per carat. About 22% of these stones are listed by more than one retailer, and the same stone is priced 67% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is H to I VS1 at £10,145 GBP per carat across 94 listings. The same shape in lab grown form runs about £883 GBP per carat, roughly 93% less.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Marquise natural stones in the index: 2,114 USD per carat, -8.8% month on month. See the full index release

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

Last updated: September 2026

Browse 4,852 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$35K	$30K	$22K	$28K	$25K	$25K	$20K	$14K	$9,858
F-G	-	$21K	$21K	$20K	$23K	$22K	$20K	$15K	$7,078
H-I	-	$15K	$19K	$14K	$13K	$18K	$17K	$11K	$20K
J-K	-	$12K	$11K	$9,119	$13K	$10K	$9,018	$6,983	$20K
L-M	-	-	-	-	-	$6,389	$5,296	$3,233	-
N+	-	-	-	$1,521	$7,064	$201	-	-	$3,236

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	FL	122	£27,597 GBP	14%
D-E	I	16	£7,762 GBP	74%
D-E	IF	28	£23,335 GBP	16%
D-E	SI1	437	£16,073 GBP	17%
D-E	SI2	344	£11,112 GBP	35%
D-E	VS1	235	£19,964 GBP	26%
D-E	VS2	237	£19,962 GBP	21%
D-E	VVS1	53	£17,088 GBP	32%
D-E	VVS2	34	£21,852 GBP	21%
F-G	I	36	£5,574 GBP	53%
F-G	IF	13	£16,467 GBP	21%
F-G	SI1	276	£15,843 GBP	19%
F-G	SI2	409	£11,898 GBP	25%
F-G	VS1	135	£18,362 GBP	25%
F-G	VS2	199	£16,952 GBP	18%
F-G	VVS1	97	£16,146 GBP	19%
F-G	VVS2	34	£15,847 GBP	26%
H-I	I	24	£15,668 GBP	35%
H-I	IF	39	£12,049 GBP	22%
H-I	SI1	307	£13,346 GBP	30%
H-I	SI2	437	£8,731 GBP	41%
H-I	VS1	94	£10,145 GBP	43%
H-I	VS2	280	£14,247 GBP	22%
H-I	VVS1	94	£14,716 GBP	28%
H-I	VVS2	62	£11,387 GBP	28%
J-K	I	40	£15,642 GBP	79%
J-K	IF	27	£9,729 GBP	33%
J-K	SI1	192	£7,101 GBP	29%
J-K	SI2	183	£5,498 GBP	59%
J-K	VS1	50	£9,855 GBP	29%
J-K	VS2	82	£7,965 GBP	25%
J-K	VVS1	18	£8,709 GBP	15%
J-K	VVS2	22	£7,181 GBP	28%
L-M	SI1	32	£4,170 GBP	26%
L-M	SI2	20	£2,545 GBP	31%
L-M	VS2	11	£5,031 GBP	19%
N+	I	19	£2,548 GBP	54%
N+	VS1	10	£5,562 GBP	73%
N+	VS2	17	£159 GBP	2451%
N+	VVS2	87	£1,198 GBP	45%

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