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

As of September 2026, 1.00 to 1.49ct H I1 lab grown round diamonds typically cost HK$8,507 HKD to HK$40,283 HKD, with a median price of HK$20,648 HKD. There are currently 98 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 71%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct H I1 Lab Grown Round

Quick answer

As of September 2026, there are 98 lab grown round diamonds with H colour and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run HK$8,507 HKD to HK$40,283 HKD, with a median of HK$20,648 HKD. At least 18 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 71%. Half of all listings fall between HK$11,701 HKD and HK$22,933 HKD per carat. The same specification in natural form lists at a median of about HK$17,427 HKD per carat. Over the last 30 days the median price moved -13.3% and the number of listings moved -51.0%.

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. Round lab grown stones in the index: 438 USD per carat, -14.1% 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

Lowest Price

HK$1,278 HKD

Highest Price

HK$58,979 HKD

Average Price

HK$22,607 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

35.7%

Price Spread

71.1%

30-Day Price Trend

-13.3%

30-Day Supply Change

-51.0%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$2,015/ct

10th Percentile

$926

Median

$2,015

90th Percentile

$3,988

Score Distribution

98 diamonds scored across 4 quality tiers

Excellent

1 (1.0%)

Very Good

21 (21.4%)

Good

31 (31.6%)

Average

45 (45.9%)

Find Your Diamond

Search 98 H I1 round diamonds and compare prices.

Search Diamonds

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