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

As of October 2026, 3.00 to 4.99ct H SI1 natural oval diamonds typically cost $32,757 USD to $82,230 USD, with a median price of $46,578 USD. There are currently 169 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 29%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct H SI1 Natural Oval

Quick answer

As of October 2026, there are 169 natural oval diamonds with H color and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $32,757 USD to $82,230 USD, with a median of $46,578 USD. At least 61 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 29%. Half of all listings fall between $10,633 USD and $14,179 USD per carat. The same specification in lab grown form lists at a median of about $496 USD per carat. Over the last 30 days the median price moved +0.1% and the number of listings moved +4.4%.

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

169

Lowest Price

$18,699 USD

Highest Price

$141,464 USD

Average Price

$52,011 USD

Market Intelligence

Retailers Selling

Cross Retailer %

31.8%

Price Spread

28.5%

30-Day Price Trend

+0.1%

30-Day Supply Change

+4.4%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$12,432/ct

10th Percentile

$8,933

Median

$12,432

90th Percentile

$16,170

Score Distribution

534 diamonds scored across 4 quality tiers

Excellent

19 (3.6%)

Very Good

120 (22.5%)

Good

99 (18.5%)

Average

296 (55.4%)

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Consider Instead

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

H SI2SI2 inclusions are not visible without magnification

Save 25%

Lab-Grown H SI1Same specifications, lab-grown origin

Save 95%

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