How much does a 3.00 to 4.99ct I VS1 lab grown cushion diamond cost?

As of July 2026, 3.00 to 4.99ct I VS1 lab grown cushion diamonds typically cost HK$4,703 HKD to HK$38,381 HKD, with a median price of HK$9,463 HKD. There are currently 228 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS1 cushion diamond?

Compare prices across retailers on Carat Hunter to see all your options.

3.00 to 4.99ct I VS1 Lab Grown Cushion

Last updated: July 2026

Available

228

Lowest Price

HK$2,677 HKD

Highest Price

HK$260,462 HKD

Average Price

HK$17,792 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

N/A

Price Spread

155.6%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$621/ct

10th Percentile

$272

Median

$621

90th Percentile

$3,032

Score Distribution

228 diamonds scored across 4 quality tiers

Excellent

61 (26.8%)

Very Good

71 (31.1%)

Good

58 (25.4%)

Average

38 (16.7%)

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J VS1J colour is visually identical to I to the naked eye

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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