How much does a 1.00 to 1.49ct D FL lab grown radiant diamond cost?

As of September 2026, 1.00 to 1.49ct D FL lab grown radiant diamonds typically cost $278 USD to $3,813 USD, with a median price of $998 USD. There are currently 1,172 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct D FL Lab Grown Radiant

Quick answer

As of September 2026, there are 1,172 lab grown radiant diamonds with D color and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $278 USD to $3,813 USD, with a median of $998 USD. At least 28 retailers stock this exact specification. Half of all listings fall between $579 USD and $1,481 USD per carat. The same specification in natural form lists at a median of about $6,825 USD 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

1,172

Lowest Price

$226 USD

Highest Price

$8,414 USD

Average Price

$1,739 USD

Market Intelligence

Retailers Selling

Price Spread

107.6%

Price Range

Price per carat distribution across retailers

$839/ct

10th Percentile

$452

Median

$839

90th Percentile

$2,721

Score Distribution

1.2K diamonds scored across 4 quality tiers

Excellent

220 (18.8%)

Very Good

220 (18.8%)

Good

316 (27.0%)

Average

416 (35.5%)

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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