How much does a 1.00 to 1.49ct F I1 lab grown round diamond cost?

As of October 2026, 1.00 to 1.49ct F I1 lab grown round diamonds typically cost $183 USD to $1,708 USD, with a median price of $496 USD. There are currently 13 diamonds matching this specification available across retailers.

Where can I find the best price on a F I1 round diamond?

About 21% of these diamonds are available at multiple retailers, with an average price spread of 120%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct F I1 Lab Grown Round

Quick answer

As of October 2026, there are 13 lab grown round diamonds with F color and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $183 USD to $1,708 USD, with a median of $496 USD. At least 21 retailers stock this exact specification, and 21% of the stones appear at more than one of them, with an average price spread of 120%. Half of all listings fall between $502 USD and $2,071 USD per carat. The same specification in natural form lists at a median of about $2,341 USD per carat. Over the last 30 days the median price moved -32.5% and the number of listings moved -52.8%.

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. Round lab grown stones in the index: 414 USD per carat, -5.0% 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

Lowest Price

$167 USD

Highest Price

$3,043 USD

Average Price

$701 USD

Market Intelligence

Retailers Selling

Cross Retailer %

20.8%

Price Spread

119.8%

30-Day Price Trend

-32.5%

30-Day Supply Change

-52.8%

Volatility (30d)

0.12

Price Range

Price per carat distribution across retailers

$1,309/ct

10th Percentile

$202

Median

$1,309

90th Percentile

$2,447

Score Distribution

31 diamonds scored across 4 quality tiers

Excellent

3 (9.7%)

Very Good

11 (35.5%)

Good

9 (29.0%)

Average

8 (25.8%)

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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