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

As of November 2026, 1.50 to 1.99ct F SI2 natural radiant diamonds typically cost €3,966 EUR to €11,131 EUR, with a median price of €6,088 EUR. There are currently 98 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 54%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct F SI2 Natural Radiant

Quick answer

As of November 2026, there are 98 natural radiant diamonds with F color and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run €3,966 EUR to €11,131 EUR, with a median of €6,088 EUR. At least 55 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 54%. Half of all listings fall between €2,926 EUR and €5,009 EUR per carat. The same specification in lab grown form lists at a median of about €373 EUR per carat. Over the last 30 days the median price moved -0.9% and the number of listings moved +13.8%.

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. Radiant natural stones in the index: 3,091 USD per carat, +13.2% 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

€2,336 EUR

Highest Price

€15,982 EUR

Average Price

€6,999 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

36.4%

Price Spread

54.0%

30-Day Price Trend

-0.9%

30-Day Supply Change

+13.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,308/ct

10th Percentile

$2,660

Median

$4,308

90th Percentile

$6,965

Score Distribution

312 diamonds scored across 4 quality tiers

Excellent

60 (19.2%)

Very Good

61 (19.6%)

Good

63 (20.2%)

Average

128 (41.0%)

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Consider Instead

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

Lab-Grown F SI2Same specifications, lab-grown origin

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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