How much does a 1.00 to 1.49ct H I1 natural round diamond cost?

As of October 2026, 1.00 to 1.49ct H I1 natural round diamonds typically cost HK$10,517 HKD to HK$34,960 HKD, with a median price of HK$19,629 HKD. There are currently 571 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 67%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct H I1 Natural Round

Quick answer

As of October 2026, there are 571 natural round diamonds with H colour and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run HK$10,517 HKD to HK$34,960 HKD, with a median of HK$19,629 HKD. At least 31 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 67%. Half of all listings fall between HK$11,159 HKD and HK$21,240 HKD per carat. The same specification in lab grown form lists at a median of about HK$6,676 HKD per carat. Over the last 30 days the median price moved -6.3% and the number of listings moved +5.3%.

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

571

Lowest Price

HK$5,308 HKD

Highest Price

HK$63,895 HKD

Average Price

HK$21,588 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

31.4%

Price Spread

67.2%

30-Day Price Trend

-6.3%

30-Day Supply Change

+5.3%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,912/ct

10th Percentile

$1,071

Median

$1,912

90th Percentile

$3,689

Score Distribution

1.5K diamonds scored across 4 quality tiers

Excellent

89 (6.1%)

Very Good

312 (21.4%)

Good

236 (16.2%)

Average

819 (56.3%)

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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 36%

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