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

As of October 2026, 3.00 to 4.99ct J VS1 lab grown cushion diamonds typically cost $737 USD to $3,769 USD, with a median price of $1,819 USD. There are currently 29 diamonds matching this specification available across retailers.

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

About 44% of these diamonds are available at multiple retailers, with an average price spread of 115%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct J VS1 Lab Grown Cushion

Quick answer

As of October 2026, there are 29 lab grown cushion diamonds with J color and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $737 USD to $3,769 USD, with a median of $1,819 USD. At least 19 retailers stock this exact specification, and 44% of the stones appear at more than one of them, with an average price spread of 115%. Half of all listings fall between $498 USD and $1,233 USD per carat. The same specification in natural form lists at a median of about $9,905 USD per carat. Over the last 30 days the median price moved +4.7% and the number of listings moved -19.8%.

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

$560 USD

Highest Price

$7,700 USD

Average Price

$2,131 USD

Market Intelligence

Retailers Selling

Cross Retailer %

43.6%

Price Spread

114.8%

30-Day Price Trend

+4.7%

30-Day Supply Change

-19.8%

Volatility (30d)

0.07

Price Range

Price per carat distribution across retailers

$641/ct

10th Percentile

$286

Median

$641

90th Percentile

$1,690

Score Distribution

36 diamonds scored across 4 quality tiers

Excellent

10 (27.8%)

Very Good

7 (19.4%)

Good

16 (44.4%)

Average

3 (8.3%)

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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