How much does a 5.00ct+ J SI2 lab grown round diamond cost?

As of April 2026, 5.00ct+ J SI2 lab grown round diamonds are available from $112 SGD to $259,485 SGD, with an average price of $4,357 SGD. There are currently 3,899 diamonds matching this specification available across retailers.

Where can I find the best price on a J SI2 round diamond?

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5.00ct+ J SI2 Lab Grown Round

As of April 2026, there are 3,899 lab grown round diamonds with J color and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices range from $112 SGD to $259,485 SGD, with an average of $4,357 SGD.

Last updated: April 2026

Available

3,899

Lowest Price

$112 SGD

Highest Price

$259,485 SGD

Average Price

$4,357 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

N/A

Price Spread

39.3%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$14,854/ct

10th Percentile

$8,304

Median

$14,854

90th Percentile

$20,337

Score Distribution

3.9K diamonds scored across 4 quality tiers

Excellent

317 (8.1%)

Very Good

1,624 (41.7%)

Good

1,190 (30.5%)

Average

768 (19.7%)

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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