How much does a 1.00 to 1.49ct G SI1 lab grown heart diamond cost?

As of November 2026, 1.00 to 1.49ct G SI1 lab grown heart diamonds typically cost HK$2,046 HKD to HK$11,294 HKD, with a median price of HK$5,790 HKD. There are currently 9 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI1 heart diamond?

About 43% of these diamonds are available at multiple retailers, with an average price spread of 90%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct G SI1 Lab Grown Heart

Quick answer

As of November 2026, there are 9 lab grown heart diamonds with G colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run HK$2,046 HKD to HK$11,294 HKD, with a median of HK$5,790 HKD. At least 30 retailers stock this exact specification, and 43% of the stones appear at more than one of them, with an average price spread of 90%. Half of all listings fall between HK$2,405 HKD and HK$5,726 HKD per carat. The same specification in natural form lists at a median of about HK$24,132 HKD per carat. Over the last 30 days the median price moved -1.1% and the number of listings moved +6.1%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Heart lab grown stones in the index: 428 USD per carat, +1.4% 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: November 2026

Available

Lowest Price

HK$1,608 HKD

Highest Price

HK$18,009 HKD

Average Price

HK$6,105 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

42.9%

Price Spread

90.1%

30-Day Price Trend

-1.1%

30-Day Supply Change

+6.1%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$470/ct

10th Percentile

$183

Median

$470

90th Percentile

$1,185

Score Distribution

15 diamonds scored across 4 quality tiers

Excellent

3 (20.0%)

Very Good

2 (13.3%)

Good

2 (13.3%)

Average

8 (53.3%)

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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