How much does a 1.00 to 1.49ct I SI1 lab grown round diamond cost?

As of July 2026, 1.00 to 1.49ct I SI1 lab grown round diamonds typically cost HK$4,977 HKD to HK$23,846 HKD, with a median price of HK$10,485 HKD. There are currently 720 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

1.00 to 1.49ct I SI1 Lab Grown Round

Last updated: July 2026

Available

720

Lowest Price

HK$1,085 HKD

Highest Price

HK$117,731 HKD

Average Price

HK$13,393 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

N/A

Price Spread

81.1%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$3,411/ct

10th Percentile

$1,274

Median

$3,411

90th Percentile

$5,434

Score Distribution

720 diamonds scored across 4 quality tiers

Excellent

136 (18.9%)

Very Good

435 (60.4%)

Good

88 (12.2%)

Average

61 (8.5%)

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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