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

As of November 2026, 5.00ct+ D IF lab grown radiant diamonds typically cost $13,937 NZD to $61,241 NZD, with a median price of $29,411 NZD. There are currently 82 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 86%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ D IF Lab Grown Radiant

Quick answer

As of November 2026, there are 82 lab grown radiant diamonds with D colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $13,937 NZD to $61,241 NZD, with a median of $29,411 NZD. At least 41 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 86%. Half of all listings fall between $3,530 NZD and $7,665 NZD per carat. Over the last 30 days the median price moved -13.0% and the number of listings moved +12.5%.

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: November 2026

Available

Lowest Price

$8,955 NZD

Highest Price

$148,198 NZD

Average Price

$33,681 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

36.1%

Price Spread

85.9%

30-Day Price Trend

-13.0%

30-Day Supply Change

+12.5%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$2,713/ct

10th Percentile

$1,604

Median

$2,713

90th Percentile

$6,160

Score Distribution

293 diamonds scored across 5 quality tiers

Exceptional

1 (0.3%)

Excellent

85 (29.0%)

Very Good

79 (27.0%)

Good

112 (38.2%)

Average

16 (5.5%)

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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