How much does a 2.00 to 2.99ct J SI2 lab grown oval diamond cost?

As of September 2026, 2.00 to 2.99ct J SI2 lab grown oval diamonds typically cost $1,888 NZD to $7,118 NZD, with a median price of $2,711 NZD. There are currently 370 diamonds matching this specification available across retailers.

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

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2.00 to 2.99ct J SI2 Lab Grown Oval

Quick answer

As of September 2026, there are 370 lab grown oval diamonds with J colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $1,888 NZD to $7,118 NZD, with a median of $2,711 NZD. At least 13 retailers stock this exact specification. Half of all listings fall between $1,336 NZD and $3,261 NZD per carat. The same specification in natural form lists at a median of about $7,811 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 lab grown stones in the index: 487 USD per carat, -11.2% 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

370

Lowest Price

$1,663 NZD

Highest Price

$46,412 NZD

Average Price

$4,779 NZD

Market Intelligence

Retailers Selling

Price Spread

63.9%

Price Range

Price per carat distribution across retailers

$1,740/ct

10th Percentile

$542

Median

$1,740

90th Percentile

$2,782

Score Distribution

370 diamonds scored across 4 quality tiers

Excellent

31 (8.4%)

Very Good

177 (47.8%)

Good

109 (29.5%)

Average

53 (14.3%)

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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