How much does a 5.00ct+ H I1 natural round diamond cost?

As of October 2026, 5.00ct+ H I1 natural round diamonds typically cost $24,643 USD to $86,266 USD, with a median price of $64,630 USD. There are currently 14 diamonds matching this specification available across retailers.

Where can I find the best price on a H I1 round diamond?

About 25% of these diamonds are available at multiple retailers, with an average price spread of 98%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ H I1 Natural Round

Quick answer

As of October 2026, there are 14 natural round diamonds with H color and I1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $24,643 USD to $86,266 USD, with a median of $64,630 USD. At least 22 retailers stock this exact specification, and 25% of the stones appear at more than one of them, with an average price spread of 98%. Half of all listings fall between $4,855 USD and $13,032 USD per carat. The same specification in lab grown form lists at a median of about $317 USD per carat. Over the last 30 days the median price moved +17.9% and the number of listings moved +8.9%.

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. Round natural stones in the index: 2,248 USD per carat, +7.6% 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

Lowest Price

$16,138 USD

Highest Price

$147,327 USD

Average Price

$61,471 USD

Market Intelligence

Retailers Selling

Cross Retailer %

24.8%

Price Spread

97.7%

30-Day Price Trend

+17.9%

30-Day Supply Change

+8.9%

Volatility (30d)

0.06

Price Range

Price per carat distribution across retailers

$8,366/ct

10th Percentile

$3,907

Median

$8,366

90th Percentile

$14,822

Score Distribution

42 diamonds scored across 4 quality tiers

Excellent

2 (4.8%)

Very Good

10 (23.8%)

Good

7 (16.7%)

Average

23 (54.8%)

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Consider Instead

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

Lab-Grown H I1Same specifications, lab-grown origin

Save 96%

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