How much does a 1.50 to 1.99ct D FL lab grown radiant diamond cost?

As of October 2026, 1.50 to 1.99ct D FL lab grown radiant diamonds typically cost $969 NZD to $6,339 NZD, with a median price of $2,362 NZD. There are currently 396 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 122%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct D FL Lab Grown Radiant

Quick answer

As of October 2026, there are 396 lab grown radiant diamonds with D colour and FL clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $969 NZD to $6,339 NZD, with a median of $2,362 NZD. At least 41 retailers stock this exact specification, and 48% of the stones appear at more than one of them, with an average price spread of 122%. Half of all listings fall between $1,049 NZD and $3,230 NZD per carat. The same specification in natural form lists at a median of about $25,929 NZD per carat. Over the last 30 days the median price moved -11.4% and the number of listings moved +30.4%.

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

396

Lowest Price

$794 NZD

Highest Price

$12,962 NZD

Average Price

$2,781 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

48.1%

Price Spread

121.7%

30-Day Price Trend

-11.4%

30-Day Supply Change

+30.4%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$1,007/ct

10th Percentile

$420

Median

$1,007

90th Percentile

$2,414

Score Distribution

1.0K diamonds scored across 5 quality tiers

Exceptional

8 (0.8%)

Excellent

379 (36.3%)

Very Good

134 (12.8%)

Good

304 (29.1%)

Average

218 (20.9%)

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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