How much does a 3.00 to 4.99ct I VS1 natural radiant diamond cost?

As of September 2026, 3.00 to 4.99ct I VS1 natural radiant diamonds typically cost HK$185,947 HKD to HK$489,204 HKD, with a median price of HK$300,266 HKD. There are currently 138 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS1 radiant diamond?

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3.00 to 4.99ct I VS1 Natural Radiant

Quick answer

As of September 2026, there are 138 natural radiant diamonds with I colour and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run HK$185,947 HKD to HK$489,204 HKD, with a median of HK$300,266 HKD. At least 43 retailers stock this exact specification. Half of all listings fall between HK$86,802 HKD and HK$115,961 HKD per carat. The same specification in lab grown form lists at a median of about HK$3,427 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

138

Lowest Price

HK$127,511 HKD

Highest Price

HK$923,000 HKD

Average Price

HK$317,945 HKD

Market Intelligence

Retailers Selling

Price Spread

28.6%

Price Range

Price per carat distribution across retailers

$12,978/ct

10th Percentile

$9,214

Median

$12,978

90th Percentile

$16,697

Score Distribution

138 diamonds scored across 4 quality tiers

Excellent

40 (29.0%)

Very Good

31 (22.5%)

Good

40 (29.0%)

Average

27 (19.6%)

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Consider Instead

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

J VS1J colour is visually identical to I to the naked eye

Save 33%

Lab-Grown I VS1Same specifications, lab-grown origin

Save 96%

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