How much does a 3.00 to 4.99ct J SI1 natural oval diamond cost?

As of September 2026, 3.00 to 4.99ct J SI1 natural oval diamonds typically cost $17,297 USD to $49,078 USD, with a median price of $28,613 USD. There are currently 339 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

3.00 to 4.99ct J SI1 Natural Oval

Quick answer

As of September 2026, there are 339 natural oval diamonds with J color and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $17,297 USD to $49,078 USD, with a median of $28,613 USD. At least 48 retailers stock this exact specification. Half of all listings fall between $5,821 USD and $9,538 USD per carat. The same specification in lab grown form lists at a median of about $2,881 USD 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

339

Lowest Price

$10,892 USD

Highest Price

$137,104 USD

Average Price

$31,391 USD

Market Intelligence

Retailers Selling

Price Spread

48.4%

Price Range

Price per carat distribution across retailers

$7,683/ct

10th Percentile

$4,260

Median

$7,683

90th Percentile

$10,978

Score Distribution

339 diamonds scored across 4 quality tiers

Excellent

17 (5.0%)

Very Good

91 (26.8%)

Good

112 (33.0%)

Average

119 (35.1%)

Find Your Diamond

Search 339 J SI1 oval diamonds and compare prices.

Search Diamonds

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

Save 14%

Lab-Grown J SI1Same specifications, lab-grown origin

Save 72%

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