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

As of September 2026, 5.00ct+ lab grown cushion diamonds range from HK$1,192 HKD/ct to HK$286,266 HKD/ct, with an average of HK$12,189 HKD/ct.

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

As of September 2026, the lowest listed price is HK$1,192 HKD per carat and the highest is HK$286,266 HKD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

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

There are 114,228 active lab grown cushion listings between 5.00ct+ across 100+ retailers in the Carat Hunter index, refreshed daily.

Lab Grown Cushion Diamonds, 5.00ct+

Quick answer

As of September 2026, there are 114,228 lab grown cushion diamonds between 5.00ct+ listed by at least 49 retailers. A typical stone in this range costs about HK$73,136 HKD in total, or HK$12,189 HKD per carat, and most listings sit between HK$1,192 HKD and HK$286,266 HKD per carat. The best value grade combination with real depth of stock is F to G VS2 at HK$3,647 HKD per carat across 3,804 listings. The same shape in natural form runs about HK$183,140 HKD per carat, roughly 15.0 times more.

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. Cushion lab grown stones in the index: 466 USD per carat, -14.7% 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 114,228 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2
D-E	$6,204	$7,768	$1,543	$632	$622	$580	$335	$290
F-G	$4,900	$2,680	$1,132	$515	$490	$465	$333	$295
H-I	-	-	$694	$625	$538	$723	$1,384	$2,746
J-K	-	-	$1,508	$541	$780	$608	$758	$14K
L-M	-	-	-	-	$614	-	-	-
N+	-	-	$868	$549	$576	$554	$463	$296

Price by Colour & Clarity

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

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	2,888	HK$48,651 HKD	85%
D-E	IF	2,214	HK$60,916 HKD	88%
D-E	SI1	246	HK$2,626 HKD	170%
D-E	SI2	25	HK$2,277 HKD	103%
D-E	VS1	16,940	HK$4,877 HKD	117%
D-E	VS2	2,565	HK$4,550 HKD	127%
D-E	VVS1	4,145	HK$12,103 HKD	100%
D-E	VVS2	28,664	HK$4,957 HKD	114%
F-G	FL	25	HK$38,423 HKD	50%
F-G	IF	36	HK$21,014 HKD	78%
F-G	SI1	340	HK$2,613 HKD	186%
F-G	SI2	17	HK$2,313 HKD	277%
F-G	VS1	15,479	HK$3,842 HKD	122%
F-G	VS2	3,804	HK$3,647 HKD	132%
F-G	VVS1	949	HK$8,875 HKD	99%
F-G	VVS2	17,828	HK$4,037 HKD	127%
H-I	SI1	40	HK$10,851 HKD	442%
H-I	SI2	10	HK$21,537 HKD	475%
H-I	VS1	1,125	HK$4,220 HKD	128%
H-I	VS2	425	HK$5,670 HKD	92%
H-I	VVS1	68	HK$5,442 HKD	152%
H-I	VVS2	449	HK$4,902 HKD	123%
J-K	SI1	11	HK$5,944 HKD	187%
J-K	SI2	12	HK$112,127 HKD	25%
J-K	VS1	44	HK$6,117 HKD	50%
J-K	VS2	15	HK$4,772 HKD	186%
J-K	VVS1	13	HK$11,823 HKD	57%
J-K	VVS2	16	HK$4,245 HKD	75%
L-M	VS1	18	HK$4,816 HKD	19%
N+	SI1	561	HK$3,632 HKD	96%
N+	SI2	46	HK$2,320 HKD	116%
N+	VS1	7,360	HK$4,518 HKD	101%
N+	VS2	3,898	HK$4,347 HKD	102%
N+	VVS1	44	HK$6,805 HKD	99%
N+	VVS2	2,955	HK$4,306 HKD	103%
N+	other	953	HK$18,271 HKD	10%

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