How much does a 1.00 to 1.49ct H SI2 lab grown heart diamond cost?

As of October 2026, 1.00 to 1.49ct H SI2 lab grown heart diamonds typically cost HK$16,483 HKD to HK$19,261 HKD, with a median price of HK$18,280 HKD. There are currently 3 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI2 heart diamond?

About 69% of these diamonds are available at multiple retailers, with an average price spread of 76%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct H SI2 Lab Grown Heart

Quick answer

As of October 2026, there are 3 lab grown heart diamonds with H colour and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run HK$16,483 HKD to HK$19,261 HKD, with a median of HK$18,280 HKD. At least 17 retailers stock this exact specification, and 69% of the stones appear at more than one of them, with an average price spread of 76%. Half of all listings fall between HK$7,947 HKD and HK$17,633 HKD per carat. The same specification in natural form lists at a median of about HK$16,991 HKD per carat. Over the last 30 days the median price moved -5.8% and the number of listings moved -1.1%.

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. Heart lab grown stones in the index: 421 USD per carat, -1.8% 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

HK$15,714 HKD

Highest Price

HK$42,665 HKD

Average Price

HK$18,006 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

69.2%

Price Spread

75.9%

30-Day Price Trend

-5.8%

30-Day Supply Change

-1.1%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,626/ct

10th Percentile

$873

Median

$1,626

90th Percentile

$2,848

Score Distribution

5 diamonds scored across 2 quality tiers

Very Good

2 (40.0%)

Good

3 (60.0%)

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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