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

As of September 2026, 3.00 to 4.99ct D SI2 natural oval diamonds typically cost $27,891 SGD to $77,963 SGD, with a median price of $50,760 SGD. There are currently 361 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct D SI2 Natural Oval

Quick answer

As of September 2026, there are 361 natural oval diamonds with D colour and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $27,891 SGD to $77,963 SGD, with a median of $50,760 SGD. At least 45 retailers stock this exact specification. Half of all listings fall between $12,875 SGD and $18,763 SGD per carat. The same specification in lab grown form lists at a median of about $664 SGD 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

361

Lowest Price

$20,313 SGD

Highest Price

$175,198 SGD

Average Price

$52,275 SGD

Market Intelligence

Retailers Selling

Price Spread

36.4%

Price Range

Price per carat distribution across retailers

$12,762/ct

10th Percentile

$7,812

Median

$12,762

90th Percentile

$16,751

Score Distribution

361 diamonds scored across 4 quality tiers

Excellent

89 (24.7%)

Very Good

100 (27.7%)

Good

101 (28.0%)

Average

71 (19.7%)

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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