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 $249 AUD/ct to $57,643 AUD/ct, with an average of $22,122 AUD/ct.

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

As of October 2026, the lowest listed price is $249 AUD per carat and the highest is $57,643 AUD 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 $84,065 AUD in total, or $22,122 AUD per carat, and most listings sit between $249 AUD and $57,643 AUD 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 $19,351 AUD per carat across 151 listings. The same shape in lab grown form runs about $1,209 AUD 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	$39,791 AUD	22%
D-E	SI1	657	$28,767 AUD	20%
D-E	SI2	679	$21,226 AUD	38%
D-E	VS1	352	$36,876 AUD	24%
D-E	VS2	510	$36,604 AUD	23%
D-E	VVS1	91	$32,419 AUD	28%
D-E	VVS2	60	$38,914 AUD	24%
F-G	I	36	$2,749 AUD	139%
F-G	IF	50	$31,738 AUD	23%
F-G	SI1	487	$27,446 AUD	20%
F-G	SI2	840	$21,428 AUD	34%
F-G	VS1	243	$33,200 AUD	23%
F-G	VS2	362	$31,888 AUD	24%
F-G	VVS1	103	$36,371 AUD	20%
F-G	VVS2	55	$30,631 AUD	17%
H-I	I	15	$17,448 AUD	57%
H-I	IF	10	$23,126 AUD	36%
H-I	SI1	599	$21,246 AUD	50%
H-I	SI2	835	$15,144 AUD	64%
H-I	VS1	178	$21,353 AUD	36%
H-I	VS2	418	$24,252 AUD	35%
H-I	VVS1	236	$27,748 AUD	30%
H-I	VVS2	151	$19,351 AUD	33%
J-K	SI1	305	$15,025 AUD	33%
J-K	SI2	604	$14,540 AUD	51%
J-K	VS1	109	$20,243 AUD	16%
J-K	VS2	94	$13,962 AUD	32%
J-K	VVS1	74	$17,148 AUD	18%
J-K	VVS2	40	$17,620 AUD	28%
L-M	SI1	34	$7,196 AUD	20%
L-M	SI2	36	$5,980 AUD	34%
L-M	VS1	21	$9,278 AUD	31%
L-M	VS2	36	$8,777 AUD	21%
N+	I	40	$4,413 AUD	95%
N+	SI2	13	$6,714 AUD	18%
N+	VS1	41	$9,166 AUD	33%
N+	VS2	25	$287 AUD	185%
N+	VVS2	153	$2,171 AUD	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