How much does a 0.20 to 0.49ct F SI1 natural heart diamond cost?

As of November 2026, 0.20 to 0.49ct F SI1 natural heart diamonds typically cost €308 EUR to €543 EUR, with a median price of €436 EUR. There are currently 333 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI1 heart diamond?

About 39% of these diamonds are available at multiple retailers, with an average price spread of 25%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct F SI1 Natural Heart

Quick answer

As of November 2026, there are 333 natural heart diamonds with F color and SI1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run €308 EUR to €543 EUR, with a median of €436 EUR. At least 16 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 25%. Half of all listings fall between €1,167 EUR and €1,491 EUR per carat. Over the last 30 days the median price moved -5.1% and the number of listings moved -11.1%.

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. Heart natural stones in the index: 2,374 USD per carat, +9.8% 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

333

Lowest Price

€186 EUR

Highest Price

€1,049 EUR

Average Price

€435 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

39.2%

Price Spread

24.5%

30-Day Price Trend

-5.1%

30-Day Supply Change

-11.1%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,479/ct

10th Percentile

$1,024

Median

$1,479

90th Percentile

$1,956

Score Distribution

715 diamonds scored across 4 quality tiers

Excellent

111 (15.5%)

Very Good

147 (20.6%)

Good

140 (19.6%)

Average

317 (44.3%)

Find Your Diamond

Search 333 F SI1 heart diamonds and compare prices.

Search Diamonds

Consider Instead

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

F SI2SI2 inclusions are not visible without magnification

Save 8%

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