How much does a 0.50 to 0.74ct F SI2 natural round diamond cost?

As of November 2026, 0.50 to 0.74ct F SI2 natural round diamonds typically cost €478 EUR to €1,511 EUR, with a median price of €821 EUR. There are currently 8,535 diamonds matching this specification available across retailers.

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

About 37% of these diamonds are available at multiple retailers, with an average price spread of 56%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct F SI2 Natural Round

Quick answer

As of November 2026, there are 8,535 natural round diamonds with F color and SI2 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run €478 EUR to €1,511 EUR, with a median of €821 EUR. At least 64 retailers stock this exact specification, and 37% of the stones appear at more than one of them, with an average price spread of 56%. Half of all listings fall between €1,094 EUR and €1,853 EUR per carat. The same specification in lab grown form lists at a median of about €1,082 EUR per carat. Over the last 30 days the median price moved -1.6% and the number of listings moved +11.6%.

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 natural stones in the index: 2,248 USD per carat, +7.6% 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

8,535

Lowest Price

€192 EUR

Highest Price

€3,307 EUR

Average Price

€931 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

36.8%

Price Spread

56.0%

30-Day Price Trend

-1.6%

30-Day Supply Change

+11.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,513/ct

10th Percentile

$1,037

Median

$1,513

90th Percentile

$2,925

Score Distribution

12.7K diamonds scored across 4 quality tiers

Excellent

2,802 (22.1%)

Very Good

3,380 (26.7%)

Good

3,750 (29.6%)

Average

2,742 (21.6%)

Find Your Diamond

Search 8,535 F SI2 round diamonds and compare prices.

Search Diamonds

Consider Instead

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

F I1I1 inclusions are not visible without magnification

Save 17%

Lab-Grown F SI2Same specifications, lab-grown origin

Save 20%

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