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

As of October 2026, 3.00 to 4.99ct D FL lab grown radiant diamonds typically cost $4,163 NZD to $24,968 NZD, with a median price of $8,952 NZD. There are currently 1,126 diamonds matching this specification available across retailers.

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

About 48% of these diamonds are available at multiple retailers, with an average price spread of 94%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct D FL Lab Grown Radiant

Quick answer

As of October 2026, there are 1,126 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 $4,163 NZD to $24,968 NZD, with a median of $8,952 NZD. At least 40 retailers stock this exact specification, and 48% of the stones appear at more than one of them, with an average price spread of 94%. Half of all listings fall between $1,819 NZD and $4,248 NZD per carat. Over the last 30 days the median price moved -17.5% and the number of listings moved +12.8%.

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. Radiant lab grown stones in the index: 474 USD per carat, -2.1% 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

1,126

Lowest Price

$2,889 NZD

Highest Price

$68,847 NZD

Average Price

$12,482 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

47.5%

Price Spread

94.2%

30-Day Price Trend

-17.5%

30-Day Supply Change

+12.8%

Volatility (30d)

0.06

Price Range

Price per carat distribution across retailers

$1,453/ct

10th Percentile

$777

Median

$1,453

90th Percentile

$3,694

Score Distribution

3.2K diamonds scored across 5 quality tiers

Exceptional

31 (1.0%)

Excellent

1,201 (38.0%)

Very Good

171 (5.4%)

Good

1,466 (46.4%)

Average

289 (9.2%)

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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