How much does a 2.00 to 2.99ct J SI1 natural oval diamond cost?

As of October 2026, 2.00 to 2.99ct J SI1 natural oval diamonds typically cost $10,242 AUD to $30,891 AUD, with a median price of $18,197 AUD. There are currently 267 diamonds matching this specification available across retailers.

Where can I find the best price on a J SI1 oval diamond?

About 38% of these diamonds are available at multiple retailers, with an average price spread of 52%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J SI1 Natural Oval

Quick answer

As of October 2026, there are 267 natural oval diamonds with J colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $10,242 AUD to $30,891 AUD, with a median of $18,197 AUD. At least 54 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 52%. Half of all listings fall between $5,131 AUD and $8,670 AUD per carat. The same specification in lab grown form lists at a median of about $1,924 AUD per carat. Over the last 30 days the median price moved -1.8% and the number of listings moved +6.4%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Oval natural stones in the index: 2,655 USD per carat, +10.2% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

267

Lowest Price

$5,951 AUD

Highest Price

$55,165 AUD

Average Price

$19,819 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

37.7%

Price Spread

52.2%

30-Day Price Trend

-1.8%

30-Day Supply Change

+6.4%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,762/ct

10th Percentile

$2,723

Median

$4,762

90th Percentile

$7,387

Score Distribution

800 diamonds scored across 4 quality tiers

Excellent

60 (7.5%)

Very Good

160 (20.0%)

Good

148 (18.5%)

Average

432 (54.0%)

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Consider Instead

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

J SI2SI2 inclusions are not visible without magnification

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Lab-Grown J SI1Same specifications, lab-grown origin

Save 71%

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