How much does a 3.00 - 4.99ct I SI2 natural round diamond cost?

As of April 2026, 3.00 - 4.99ct I SI2 natural round diamonds are available from HK$462 HKD to HK$6,370,142 HKD, with an average price of HK$50,887 HKD. There are currently 17,064 diamonds matching this specification available across retailers.

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

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3.00 - 4.99ct I SI2 Natural Round

As of April 2026, there are 17,064 natural round diamonds with I color and SI2 clarity in the 3.00 - 4.99ct range available across retailers worldwide. Prices range from HK$462 HKD to HK$6,370,142 HKD, with an average of HK$50,887 HKD.

Last updated: April 2026

Available

17,064

Lowest Price

HK$462 HKD

Highest Price

HK$6,370,142 HKD

Average Price

HK$50,887 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

N/A

Price Spread

39.3%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$10,359/ct

10th Percentile

$6,159

Median

$10,359

90th Percentile

$14,784

Score Distribution

17.1K diamonds scored across 4 quality tiers

Excellent

3,612 (21.2%)

Very Good

6,781 (39.7%)

Good

4,024 (23.6%)

Average

2,647 (15.5%)

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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