How much does a 3.00 to 4.99ct I VS2 lab grown cushion diamond cost?

As of October 2026, 3.00 to 4.99ct I VS2 lab grown cushion diamonds typically cost HK$6,192 HKD to HK$34,460 HKD, with a median price of HK$13,836 HKD. There are currently 38 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS2 cushion diamond?

About 23% of these diamonds are available at multiple retailers, with an average price spread of 104%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct I VS2 Lab Grown Cushion

Quick answer

As of October 2026, there are 38 lab grown cushion diamonds with I colour and VS2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run HK$6,192 HKD to HK$34,460 HKD, with a median of HK$13,836 HKD. At least 37 retailers stock this exact specification, and 23% of the stones appear at more than one of them, with an average price spread of 104%. Half of all listings fall between HK$2,671 HKD and HK$7,790 HKD per carat. The same specification in natural form lists at a median of about HK$112,337 HKD per carat. Over the last 30 days the median price moved +8.6% and the number of listings moved +14.1%.

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

Available

Lowest Price

HK$2,966 HKD

Highest Price

HK$79,871 HKD

Average Price

HK$18,267 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

23.1%

Price Spread

104.0%

30-Day Price Trend

+8.6%

30-Day Supply Change

+14.1%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$628/ct

10th Percentile

$247

Median

$628

90th Percentile

$1,555

Score Distribution

56 diamonds scored across 4 quality tiers

Excellent

10 (17.9%)

Very Good

19 (33.9%)

Good

11 (19.6%)

Average

16 (28.6%)

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Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1