How much does a 1.00 to 1.49ct D SI2 natural oval diamond cost?

As of September 2026, 1.00 to 1.49ct D SI2 natural oval diamonds typically cost $2,108 USD to $4,903 USD, with a median price of $3,056 USD. There are currently 2,809 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct D SI2 Natural Oval

Quick answer

As of September 2026, there are 2,809 natural oval diamonds with D color and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,108 USD to $4,903 USD, with a median of $3,056 USD. At least 55 retailers stock this exact specification. Half of all listings fall between $2,364 USD and $3,322 USD per carat. The same specification in lab grown form lists at a median of about $1,490 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

2,809

Lowest Price

$1,303 USD

Highest Price

$12,092 USD

Average Price

$3,325 USD

Market Intelligence

Retailers Selling

Price Spread

34.4%

Price Range

Price per carat distribution across retailers

$2,782/ct

10th Percentile

$1,998

Median

$2,782

90th Percentile

$4,026

Score Distribution

2.8K diamonds scored across 4 quality tiers

Excellent

526 (18.7%)

Very Good

897 (31.9%)

Good

681 (24.2%)

Average

705 (25.1%)

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Consider Instead

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

D I1I1 inclusions are not visible without magnification

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Lab-Grown D SI2Same specifications, lab-grown origin

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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