How much does a 2.00 to 2.99ct I SI2 natural oval diamond cost?

As of September 2026, 2.00 to 2.99ct I SI2 natural oval diamonds typically cost $9,787 NZD to $29,876 NZD, with a median price of $17,394 NZD. There are currently 1,728 diamonds matching this specification available across retailers.

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

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2.00 to 2.99ct I SI2 Natural Oval

Quick answer

As of September 2026, there are 1,728 natural oval diamonds with I colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $9,787 NZD to $29,876 NZD, with a median of $17,394 NZD. At least 51 retailers stock this exact specification. Half of all listings fall between $6,699 NZD and $11,375 NZD per carat. The same specification in lab grown form lists at a median of about $3,225 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. 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

1,728

Lowest Price

$4,315 NZD

Highest Price

$64,591 NZD

Average Price

$18,771 NZD

Market Intelligence

Retailers Selling

Price Spread

51.5%

Price Range

Price per carat distribution across retailers

$5,442/ct

10th Percentile

$3,096

Median

$5,442

90th Percentile

$7,938

Score Distribution

1.7K diamonds scored across 4 quality tiers

Excellent

221 (12.8%)

Very Good

674 (39.0%)

Good

509 (29.5%)

Average

324 (18.8%)

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Consider Instead

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

J SI2J colour is visually identical to I to the naked eye

Save 28%

Lab-Grown I SI2Same specifications, lab-grown origin

Save 65%

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