How much does a 3.00 to 4.99ct F SI2 natural radiant diamond cost?

As of September 2026, 3.00 to 4.99ct F SI2 natural radiant diamonds typically cost HK$158,455 HKD to HK$494,540 HKD, with a median price of HK$293,218 HKD. There are currently 111 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct F SI2 Natural Radiant

Quick answer

As of September 2026, there are 111 natural radiant diamonds with F colour and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run HK$158,455 HKD to HK$494,540 HKD, with a median of HK$293,218 HKD. At least 38 retailers stock this exact specification. Half of all listings fall between HK$73,613 HKD and HK$106,058 HKD per carat. The same specification in lab grown form lists at a median of about HK$7,517 HKD per carat.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Radiant natural stones in the index: 2,765 USD per carat, +6.0% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

111

Lowest Price

HK$112,870 HKD

Highest Price

HK$1,161,439 HKD

Average Price

HK$313,096 HKD

Market Intelligence

Retailers Selling

Price Spread

34.8%

Price Range

Price per carat distribution across retailers

$11,898/ct

10th Percentile

$6,749

Median

$11,898

90th Percentile

$15,089

Score Distribution

111 diamonds scored across 4 quality tiers

Excellent

29 (26.1%)

Very Good

29 (26.1%)

Good

21 (18.9%)

Average

32 (28.8%)

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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