How much does a 3.00 to 4.99ct J SI2 natural oval diamond cost?

As of October 2026, 3.00 to 4.99ct J SI2 natural oval diamonds typically cost $20,915 CAD to $83,923 CAD, with a median price of $40,758 CAD. There are currently 185 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 48%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct J SI2 Natural Oval

Quick answer

As of October 2026, there are 185 natural oval diamonds with J color and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $20,915 CAD to $83,923 CAD, with a median of $40,758 CAD. At least 49 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 48%. Half of all listings fall between $7,149 CAD and $11,541 CAD per carat. The same specification in lab grown form lists at a median of about $5,635 CAD per carat. Over the last 30 days the median price moved -3.5% and the number of listings moved +6.9%.

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

185

Lowest Price

$10,062 CAD

Highest Price

$158,667 CAD

Average Price

$46,869 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

41.9%

Price Spread

47.6%

30-Day Price Trend

-3.5%

30-Day Supply Change

+6.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,610/ct

10th Percentile

$3,892

Median

$6,610

90th Percentile

$9,873

Score Distribution

530 diamonds scored across 4 quality tiers

Excellent

45 (8.5%)

Very Good

126 (23.8%)

Good

70 (13.2%)

Average

289 (54.5%)

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Consider Instead

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

Lab-Grown J SI2Same specifications, lab-grown origin

Save 52%

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