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

As of October 2026, 1.50 to 1.99ct F IF lab grown radiant diamonds typically cost £206 GBP to £2,404 GBP, with a median price of £616 GBP. There are currently 40 diamonds matching this specification available across retailers.

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

About 40% of these diamonds are available at multiple retailers, with an average price spread of 112%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct F IF Lab Grown Radiant

Quick answer

As of October 2026, there are 40 lab grown radiant diamonds with F colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £206 GBP to £2,404 GBP, with a median of £616 GBP. At least 42 retailers stock this exact specification, and 40% of the stones appear at more than one of them, with an average price spread of 112%. Half of all listings fall between £233 GBP and £717 GBP per carat. The same specification in natural form lists at a median of about £6,594 GBP per carat. Over the last 30 days the median price moved -10.4% and the number of listings moved +22.0%.

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

£176 GBP

Highest Price

£4,001 GBP

Average Price

£1,016 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

40.0%

Price Spread

111.8%

30-Day Price Trend

-10.4%

30-Day Supply Change

+22.0%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$575/ct

10th Percentile

$197

Median

$575

90th Percentile

$1,524

Score Distribution

109 diamonds scored across 4 quality tiers

Excellent

31 (28.4%)

Very Good

16 (14.7%)

Good

33 (30.3%)

Average

29 (26.6%)

Find Your Diamond

Search 40 F IF radiant diamonds and compare prices.

Search Diamonds

Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F VVS1VVS1 inclusions are not visible without magnification

Save 6%

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