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 $40,584 NZD to $107,429 NZD, with a median price of $65,649 NZD. There are currently 137 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

3.00 to 4.99ct I VS1 Natural Radiant

Quick answer

As of September 2026, there are 137 natural radiant diamonds with I colour and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $40,584 NZD to $107,429 NZD, with a median of $65,649 NZD. At least 42 retailers stock this exact specification. Half of all listings fall between $18,998 NZD and $25,688 NZD per carat. The same specification in lab grown form lists at a median of about $753 NZD 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

137

Lowest Price

$27,933 NZD

Highest Price

$202,196 NZD

Average Price

$69,653 NZD

Market Intelligence

Retailers Selling

Price Spread

30.0%

Price Range

Price per carat distribution across retailers

$13,000/ct

10th Percentile

$9,020

Median

$13,000

90th Percentile

$16,819

Score Distribution

137 diamonds scored across 4 quality tiers

Excellent

40 (29.2%)

Very Good

31 (22.6%)

Good

39 (28.5%)

Average

27 (19.7%)

Find Your Diamond

Search 137 I VS1 radiant diamonds and compare prices.

Search Diamonds

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 42%

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