How much does a 3.00 to 4.99ct J IF lab grown radiant diamond cost?

As of September 2026, 3.00 to 4.99ct J IF lab grown radiant diamonds typically cost $5,303 SGD to $36,396 SGD, with a median price of $8,024 SGD. There are currently 5 diamonds matching this specification available across retailers.

Where can I find the best price on a J IF radiant diamond?

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

3.00 to 4.99ct J IF Lab Grown Radiant

Quick answer

As of September 2026, there are 5 lab grown radiant diamonds with J colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $5,303 SGD to $36,396 SGD, with a median of $8,024 SGD. The same specification in natural form lists at a median of about $12,339 SGD per carat.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Radiant lab grown stones in the index: 473 USD per carat, -12.5% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$5,299 SGD

Highest Price

$49,971 SGD

Average Price

$17,089 SGD

Score Distribution

5 diamonds scored across 3 quality tiers

Excellent

1 (20.0%)

Very Good

3 (60.0%)

Good

1 (20.0%)

Find Your Diamond

Search 5 J IF radiant diamonds and compare prices.

Search Diamonds

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