How much does a 1.00 to 1.49ct I VS1 lab grown radiant diamond cost?

As of October 2026, 1.00 to 1.49ct I VS1 lab grown radiant diamonds typically cost HK$1,601 HKD to HK$8,874 HKD, with a median price of HK$3,816 HKD. There are currently 49 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS1 radiant diamond?

About 32% of these diamonds are available at multiple retailers, with an average price spread of 66%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I VS1 Lab Grown Radiant

Quick answer

As of October 2026, there are 49 lab grown radiant diamonds with I colour and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run HK$1,601 HKD to HK$8,874 HKD, with a median of HK$3,816 HKD. At least 45 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 66%. Half of all listings fall between HK$2,713 HKD and HK$5,118 HKD per carat. The same specification in natural form lists at a median of about HK$29,964 HKD per carat. Over the last 30 days the median price moved +5.2% and the number of listings moved +9.7%.

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. Radiant lab grown stones in the index: 474 USD per carat, -2.1% 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$1,012 HKD

Highest Price

HK$17,584 HKD

Average Price

HK$4,728 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

32.2%

Price Spread

66.3%

30-Day Price Trend

+5.2%

30-Day Supply Change

+9.7%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$463/ct

10th Percentile

$210

Median

$463

90th Percentile

$981

Score Distribution

70 diamonds scored across 4 quality tiers

Excellent

20 (28.6%)

Very Good

13 (18.6%)

Good

23 (32.9%)

Average

14 (20.0%)

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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