How much does a 5.00ct+ D FL lab grown radiant diamond cost?

As of September 2026, 5.00ct+ D FL lab grown radiant diamonds typically cost $18,243 NZD to $83,420 NZD, with a median price of $49,411 NZD. There are currently 501 diamonds matching this specification available across retailers.

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

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5.00ct+ D FL Lab Grown Radiant

Quick answer

As of September 2026, there are 501 lab grown radiant diamonds with D colour and FL clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $18,243 NZD to $83,420 NZD, with a median of $49,411 NZD. At least 22 retailers stock this exact specification. Half of all listings fall between $4,616 NZD and $11,220 NZD per carat. The same specification in natural form lists at a median of about $94,812 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

501

Lowest Price

$14,747 NZD

Highest Price

$668,759 NZD

Average Price

$55,554 NZD

Market Intelligence

Retailers Selling

Price Spread

109.0%

Price Range

Price per carat distribution across retailers

$3,499/ct

10th Percentile

$2,181

Median

$3,499

90th Percentile

$8,648

Score Distribution

501 diamonds scored across 4 quality tiers

Excellent

123 (24.6%)

Very Good

116 (23.2%)

Good

180 (35.9%)

Average

82 (16.4%)

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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