How much does a 5.00ct+ lab grown marquise diamond cost?

As of November 2026, 5.00ct+ lab grown marquise diamonds range from HK$1,058 HKD/ct to HK$72,044 HKD/ct, with an average of HK$6,375 HKD/ct.

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

As of November 2026, the lowest listed price is HK$1,058 HKD per carat and the highest is HK$72,044 HKD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 5.00ct+ lab grown marquise diamonds are available?

There are 133,746 active lab grown 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+ lab grown marquise diamond?

Approximately 47% of these diamonds are available at multiple retailers, with an average price spread of 91% between the cheapest and most expensive listing of the same stone.

Lab Grown Marquise Diamonds, 5.00ct+

Quick answer

As of November 2026, there are 133,746 listings of lab grown marquise diamonds between 5.00ct+ from at least 59 retailers. A typical stone in this range costs about HK$38,249 HKD in total, or HK$6,375 HKD per carat, and most listings sit between HK$1,058 HKD and HK$72,044 HKD per carat. About 47% of these stones are listed by more than one retailer, and the same stone is priced 91% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is F to G VS1 at HK$2,908 HKD per carat across 21,174 listings. The same shape in natural form runs about HK$76,560 HKD per carat, roughly 12.0 times more.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise lab grown stones in the index: 505 USD per carat, +1.6% 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: November 2026

Browse 133,746 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$6,318	$4,721	$1,130	$459	$416	$383	$241	-	-
F-G	-	$2,414	$709	$375	$371	$413	$308	$238	-
H-I	-	-	$1,399	$436	$407	$455	$469	-	-
J-K	-	-	-	$442	-	$277	-	-	-
N+	-	-	$666	$456	$436	$439	$349	$540	$206

Price by Colour & Clarity

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

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	70	HK$49,568 HKD	49%
D-E	IF	311	HK$37,042 HKD	91%
D-E	SI1	108	HK$1,888 HKD	101%
D-E	VS1	18,158	HK$3,263 HKD	110%
D-E	VS2	2,681	HK$3,008 HKD	131%
D-E	VVS1	5,057	HK$8,866 HKD	66%
D-E	VVS2	33,522	HK$3,605 HKD	103%
F-G	IF	66	HK$18,938 HKD	75%
F-G	SI1	327	HK$2,419 HKD	107%
F-G	SI2	14	HK$1,866 HKD	74%
F-G	VS1	21,174	HK$2,908 HKD	101%
F-G	VS2	3,609	HK$3,240 HKD	114%
F-G	VVS1	2,169	HK$5,560 HKD	82%
F-G	VVS2	33,094	HK$2,939 HKD	99%
H-I	SI1	15	HK$3,679 HKD	52%
H-I	VS1	1,108	HK$3,193 HKD	99%
H-I	VS2	343	HK$3,570 HKD	174%
H-I	VVS1	41	HK$10,975 HKD	88%
H-I	VVS2	1,287	HK$3,419 HKD	104%
J-K	VS2	13	HK$2,176 HKD	49%
J-K	VVS2	36	HK$3,468 HKD	75%
N+	I	13	HK$1,615 HKD	76%
N+	SI1	211	HK$2,738 HKD	156%
N+	SI2	35	HK$4,235 HKD	56%
N+	VS1	5,294	HK$3,423 HKD	86%
N+	VS2	1,981	HK$3,447 HKD	84%
N+	VVS1	70	HK$5,228 HKD	82%
N+	VVS2	2,620	HK$3,578 HKD	89%
N+	other	319	HK$14,795 HKD	22%

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