How much does a 1.50 to 1.99ct F SI2 lab grown radiant diamond cost?

As of October 2026, 1.50 to 1.99ct F SI2 lab grown radiant diamonds typically cost $361 CAD to $1,500 CAD, with a median price of $437 CAD. There are currently 3 diamonds matching this specification available across retailers.

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

About 21% of these diamonds are available at multiple retailers, with an average price spread of 104%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct F SI2 Lab Grown Radiant

Quick answer

As of October 2026, there are 3 lab grown radiant diamonds with F color and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $361 CAD to $1,500 CAD, with a median of $437 CAD. 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 104%. Half of all listings fall between $300 CAD and $821 CAD per carat. The same specification in natural form lists at a median of about $6,048 CAD per carat. Over the last 30 days the median price moved +6.3% and the number of listings moved +23.1%.

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. Radiant lab grown stones in the index: 474 USD per carat, -2.1% 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

$322 CAD

Highest Price

$1,709 CAD

Average Price

$817 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

20.8%

Price Spread

104.4%

30-Day Price Trend

+6.3%

30-Day Supply Change

+23.1%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$357/ct

10th Percentile

$150

Median

$357

90th Percentile

$731

Score Distribution

7 diamonds scored across 4 quality tiers

Excellent

2 (28.6%)

Very Good

1 (14.3%)

Good

1 (14.3%)

Average

3 (42.9%)

Find Your Diamond

Search 3 F SI2 radiant 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