How much does a 3.00 to 4.99ct D FL lab grown radiant diamond cost?

As of September 2026, 3.00 to 4.99ct D FL lab grown radiant diamonds typically cost $5,199 NZD to $33,364 NZD, with a median price of $15,826 NZD. There are currently 4,232 diamonds matching this specification available across retailers.

Where can I find the best price on a D FL radiant diamond?

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3.00 to 4.99ct D FL Lab Grown Radiant

Quick answer

As of September 2026, there are 4,232 lab grown radiant diamonds with D colour and FL clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $5,199 NZD to $33,364 NZD, with a median of $15,826 NZD. At least 30 retailers stock this exact specification. Half of all listings fall between $2,185 NZD and $6,736 NZD per carat. The same specification in natural form lists at a median of about $10,737 NZD 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

4,232

Lowest Price

$3,317 NZD

Highest Price

$307,895 NZD

Average Price

$17,889 NZD

Market Intelligence

Retailers Selling

Price Spread

133.1%

Price Range

Price per carat distribution across retailers

$1,969/ct

10th Percentile

$955

Median

$1,969

90th Percentile

$5,235

Score Distribution

4.2K diamonds scored across 4 quality tiers

Excellent

1,150 (27.2%)

Very Good

583 (13.8%)

Good

1,260 (29.8%)

Average

1,239 (29.3%)

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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