How much does a 1.00 to 1.49ct F SI2 lab grown round diamond cost?

As of November 2026, 1.00 to 1.49ct F SI2 lab grown round diamonds typically cost $311 NZD to $2,489 NZD, with a median price of $976 NZD. There are currently 52 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI2 round diamond?

About 30% of these diamonds are available at multiple retailers, with an average price spread of 94%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct F SI2 Lab Grown Round

Quick answer

As of November 2026, there are 52 lab grown round diamonds with F colour and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $311 NZD to $2,489 NZD, with a median of $976 NZD. At least 30 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 94%. Half of all listings fall between $417 NZD and $1,073 NZD per carat. The same specification in natural form lists at a median of about $5,216 NZD per carat. Over the last 30 days the median price moved -3.9% and the number of listings moved +3.3%.

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: November 2026

Available

Lowest Price

$211 NZD

Highest Price

$3,211 NZD

Average Price

$1,172 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

30.5%

Price Spread

93.7%

30-Day Price Trend

-3.9%

30-Day Supply Change

+3.3%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$395/ct

10th Percentile

$157

Median

$395

90th Percentile

$1,079

Score Distribution

91 diamonds scored across 4 quality tiers

Excellent

12 (13.2%)

Very Good

17 (18.7%)

Good

32 (35.2%)

Average

30 (33.0%)

Find Your Diamond

Search 52 F SI2 round diamonds and compare prices.

Search Diamonds

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