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

As of September 2026, 1.00 to 1.49ct G FL lab grown radiant diamonds typically cost $620 USD to $3,613 USD, with a median price of $1,918 USD. There are currently 6 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct G FL Lab Grown Radiant

Quick answer

As of September 2026, there are 6 lab grown radiant diamonds with G color and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $620 USD to $3,613 USD, with a median of $1,918 USD. At least 15 retailers stock this exact specification. Half of all listings fall between $583 USD and $1,202 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

Lowest Price

$550 USD

Highest Price

$9,180 USD

Average Price

$2,050 USD

Market Intelligence

Retailers Selling

Price Spread

91.8%

Price Range

Price per carat distribution across retailers

$674/ct

10th Percentile

$498

Median

$674

90th Percentile

$1,940

Score Distribution

6 diamonds scored across 2 quality tiers

Very Good

3 (50.0%)

Average

3 (50.0%)

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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