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

As of September 2026, 1.00 to 1.49ct F I1 lab grown round diamonds typically cost $747 SGD to $7,446 SGD, with a median price of $4,057 SGD. There are currently 103 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 78%. 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 September 2026, there are 103 lab grown round diamonds with F colour and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $747 SGD to $7,446 SGD, with a median of $4,057 SGD. At least 21 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 78%. Half of all listings fall between $1,876 SGD and $3,961 SGD per carat. The same specification in natural form lists at a median of about $3,115 SGD per carat. Over the last 30 days the median price moved -24.3% and the number of listings moved -67.9%.

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. Round lab grown stones in the index: 438 USD per carat, -14.1% 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

103

Lowest Price

$191 SGD

Highest Price

$13,460 SGD

Average Price

$3,955 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

32.4%

Price Spread

78.2%

30-Day Price Trend

-24.3%

30-Day Supply Change

-67.9%

Volatility (30d)

0.07

Price Range

Price per carat distribution across retailers

$2,001/ct

10th Percentile

$577

Median

$2,001

90th Percentile

$4,214

Score Distribution

103 diamonds scored across 4 quality tiers

Excellent

5 (4.9%)

Very Good

23 (22.3%)

Good

25 (24.3%)

Average

50 (48.5%)

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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