Is a lab grown cushion diamond worth it in Hong Kong?

Lab Grown cushion stones in Hong Kong are priced in HKD and reflect local retailer markup. Cross-retailer aggregation across more than one hundred sources lets you see if a particular listing is above or below the regional median.

Where does Hong Kong pricing data come from for cushion diamonds?

Carat Hunter aggregates retailer pricing from more than one hundred jewellery sites globally and shows the Hong Kong view in HKD. Pricing for cushion stones is refreshed daily.

Lab Grown Cushion Diamond Prices in Hong Kong

Quick answer

As of October 2026, Carat Hunter tracks 1,776,058 listings of lab grown cushion diamonds from at least 63 retailers. The median listing sits at HK$6,664 HKD per carat, and most stock falls between HK$886 HKD and HK$68,349 HKD per carat. About 42% of these stones are listed by more than one retailer, and the same stone is priced 92% apart on average between its cheapest and most expensive seller. The most common size is 3.00 to 3.99 carats, with 300,093 listings at an average of HK$6,663 HKD per carat. The best value grade combination with real depth of stock is F to G VS1 at HK$4,062 HKD per carat across 147,433 listings. The same shape in natural form runs about HK$54,182 HKD per carat, roughly 8.1 times more.

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. Cushion lab grown stones in the index: 516 USD per carat, +6.9% 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

By Carat Weight

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$1,644	$1,348	$788	$601	$560	$554	$453	$497	-
F-G	$1,570	$1,248	$714	$553	$518	$525	$473	$508	$410
H-I	-	$1,889	$1,086	$575	$577	$655	$998	$1,068	-
J-K	-	-	$1,047	$539	$751	$862	$1,280	$1,674	-
L-M	-	-	-	$609	$580	$624	-	-	-
N+	$1,748	$2,076	$889	$761	$731	$838	$878	$918	$754

By Carat Weight

Avg: HK$14,559 HKD/ct

Price by Colour & Clarity

Colour	Clarity	Listings	Avg Price/ct
D-E	FL	46,525	HK$12,897 HKD
D-E	IF	58,324	HK$10,574 HKD
D-E	SI1	8,123	HK$3,557 HKD
D-E	SI2	734	HK$3,897 HKD
D-E	VS1	377,714	HK$4,392 HKD
D-E	VS2	72,984	HK$4,344 HKD
D-E	VVS1	181,442	HK$6,185 HKD
D-E	VVS2	466,786	HK$4,715 HKD
F-G	FL	378	HK$12,318 HKD
F-G	I	14	HK$3,214 HKD
F-G	IF	2,330	HK$9,787 HKD
F-G	SI1	4,527	HK$3,712 HKD
F-G	SI2	363	HK$3,986 HKD
F-G	VS1	147,433	HK$4,062 HKD
F-G	VS2	35,668	HK$4,121 HKD
F-G	VVS1	16,306	HK$5,599 HKD
F-G	VVS2	140,314	HK$4,335 HKD
H-I	IF	26	HK$14,815 HKD
H-I	SI1	925	HK$7,828 HKD
H-I	SI2	234	HK$8,381 HKD
H-I	VS1	12,723	HK$4,529 HKD
H-I	VS2	4,090	HK$5,137 HKD
H-I	VVS1	875	HK$8,517 HKD
H-I	VVS2	6,394	HK$4,513 HKD
J-K	SI1	369	HK$10,042 HKD
J-K	SI2	147	HK$13,129 HKD
J-K	VS1	848	HK$5,890 HKD
J-K	VS2	439	HK$6,761 HKD
J-K	VVS1	27	HK$8,218 HKD
J-K	VVS2	437	HK$4,228 HKD
L-M	VS1	742	HK$4,549 HKD
L-M	VS2	74	HK$4,896 HKD
L-M	VVS2	271	HK$4,780 HKD
N+	FL	51	HK$13,711 HKD
N+	I	182	HK$5,915 HKD
N+	IF	657	HK$16,287 HKD
N+	SI1	5,757	HK$6,889 HKD
N+	SI2	1,179	HK$7,201 HKD
N+	VS1	84,658	HK$5,737 HKD
N+	VS2	32,568	HK$6,574 HKD
N+	VVS1	5,048	HK$6,974 HKD
N+	VVS2	50,614	HK$5,972 HKD
N+	other	6,758	HK$14,266 HKD