How much does a 5.00ct+ natural marquise diamond cost?

As of October 2026, 5.00ct+ natural marquise diamonds range from HK$1,384 HKD/ct to HK$418,203 HKD/ct, with an average of HK$120,151 HKD/ct.

What is the price range for 5.00ct+ natural marquise diamonds?

As of October 2026, the lowest listed price is HK$1,384 HKD per carat and the highest is HK$418,203 HKD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 5.00ct+ natural marquise diamonds are available?

There are 570 active natural marquise listings between 5.00ct+ across 100+ retailers in the Carat Hunter index, refreshed daily.

How much can I save by comparing retailers for a 5.00ct+ natural marquise diamond?

Approximately 42% of these diamonds are available at multiple retailers, with an average price spread of 231% between the cheapest and most expensive listing of the same stone.

Natural Marquise Diamonds, 5.00ct+

Quick answer

As of October 2026, there are 570 listings of natural marquise diamonds between 5.00ct+ from at least 31 retailers. A typical stone in this range costs about HK$720,908 HKD in total, or HK$120,151 HKD per carat, and most listings sit between HK$1,384 HKD and HK$418,203 HKD per carat. About 42% of these stones are listed by more than one retailer, and the same stone is priced 231% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is H to I VS2 at HK$189,704 HKD per carat across 41 listings. The same shape in lab grown form runs about HK$6,555 HKD 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 570 diamonds in Explorer

Price Distribution

LowHigh

Colour	VVS2	VS1	VS2	SI1	SI2	I
F-G	$45K	$40K	$26K	$20K	$19K	-
H-I	$31K	-	$24K	$25K	$15K	$5,335
J-K	-	$12K	$8,922	-	$6,979	-
N+	$1,564	$4,806	$303	$10K	$6,955	$1,535

Price by Colour & Clarity

Average price per carat for 5.00ct+ natural marquise diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
F-G	SI1	24	HK$158,164 HKD	24%
F-G	SI2	30	HK$150,492 HKD	41%
F-G	VS1	35	HK$310,314 HKD	32%
F-G	VS2	29	HK$204,218 HKD	29%
F-G	VVS2	21	HK$355,282 HKD	16%
H-I	I	12	HK$41,860 HKD	16%
H-I	SI1	60	HK$198,246 HKD	49%
H-I	SI2	65	HK$121,137 HKD	36%
H-I	VS2	41	HK$189,704 HKD	34%
H-I	VVS2	14	HK$243,081 HKD	17%
J-K	SI2	19	HK$54,752 HKD	17%
J-K	VS1	44	HK$95,305 HKD	48%
J-K	VS2	16	HK$69,999 HKD	11%
N+	I	24	HK$12,042 HKD	113%
N+	SI1	10	HK$79,238 HKD	12%
N+	SI2	18	HK$54,570 HKD	10%
N+	VS1	14	HK$37,704 HKD	277%
N+	VS2	20	HK$2,379 HKD	3736%
N+	VVS2	74	HK$12,270 HKD	47%

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