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

As of September 2026, 3.00 to 4.99ct I VS1 natural oval diamonds typically cost $30,312 AUD to $99,521 AUD, with a median price of $58,358 AUD. There are currently 315 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct I VS1 Natural Oval

Quick answer

As of September 2026, there are 315 natural oval diamonds with I colour and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $30,312 AUD to $99,521 AUD, with a median of $58,358 AUD. At least 55 retailers stock this exact specification. Half of all listings fall between $16,376 AUD and $22,335 AUD per carat. The same specification in lab grown form lists at a median of about $491 AUD 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. Oval natural stones in the index: 2,380 USD per carat, -9.6% 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

315

Lowest Price

$19,184 AUD

Highest Price

$248,010 AUD

Average Price

$63,509 AUD

Market Intelligence

Retailers Selling

Price Spread

30.7%

Price Range

Price per carat distribution across retailers

$13,832/ct

10th Percentile

$8,604

Median

$13,832

90th Percentile

$18,332

Score Distribution

315 diamonds scored across 4 quality tiers

Excellent

79 (25.1%)

Very Good

68 (21.6%)

Good

108 (34.3%)

Average

60 (19.0%)

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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 40%

Lab-Grown I VS1Same specifications, lab-grown origin

Save 97%

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