How much does a 0.20 to 0.49ct J VS2 lab grown round diamond cost?

As of October 2026, 0.20 to 0.49ct J VS2 lab grown round diamonds typically cost HK$701 HKD to HK$4,925 HKD, with a median price of HK$1,804 HKD. There are currently 7 diamonds matching this specification available across retailers.

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

About 50% of these diamonds are available at multiple retailers, with an average price spread of 167%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct J VS2 Lab Grown Round

Quick answer

As of October 2026, there are 7 lab grown round diamonds with J colour and VS2 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run HK$701 HKD to HK$4,925 HKD, with a median of HK$1,804 HKD. At least 10 retailers stock this exact specification, and 50% of the stones appear at more than one of them, with an average price spread of 167%. Half of all listings fall between HK$3,452 HKD and HK$11,562 HKD per carat. The same specification in natural form lists at a median of about HK$9,304 HKD per carat.

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. Round lab grown stones in the index: 414 USD per carat, -5.0% 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$526 HKD

Highest Price

HK$6,476 HKD

Average Price

HK$2,210 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

50.0%

Price Spread

166.7%

Price Range

Price per carat distribution across retailers

$620/ct

10th Percentile

$391

Median

$620

90th Percentile

$2,769

Score Distribution

28 diamonds scored across 4 quality tiers

Excellent

5 (17.9%)

Very Good

3 (10.7%)

Good

14 (50.0%)

Average

6 (21.4%)

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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