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

As of September 2026, 3.00 to 4.99ct G SI2 natural oval diamonds typically cost $16,774 USD to $55,909 USD, with a median price of $31,133 USD. There are currently 421 diamonds matching this specification available across retailers.

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3.00 to 4.99ct G SI2 Natural Oval

Quick answer

As of September 2026, there are 421 natural oval diamonds with G color and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $16,774 USD to $55,909 USD, with a median of $31,133 USD. At least 44 retailers stock this exact specification. Half of all listings fall between $8,143 USD and $13,398 USD per carat. The same specification in lab grown form lists at a median of about $5,912 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

421

Lowest Price

$12,413 USD

Highest Price

$156,940 USD

Average Price

$34,735 USD

Market Intelligence

Retailers Selling

Price Spread

47.2%

Price Range

Price per carat distribution across retailers

$11,140/ct

10th Percentile

$6,266

Median

$11,140

90th Percentile

$15,372

Score Distribution

421 diamonds scored across 4 quality tiers

Excellent

79 (18.8%)

Very Good

136 (32.3%)

Good

115 (27.3%)

Average

91 (21.6%)

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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