How much does a 1.50 to 1.99ct I VS2 lab grown radiant diamond cost?

As of October 2026, 1.50 to 1.99ct I VS2 lab grown radiant diamonds typically cost $445 AUD to $3,467 AUD, with a median price of $1,373 AUD. There are currently 16 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS2 radiant diamond?

About 19% of these diamonds are available at multiple retailers, with an average price spread of 136%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct I VS2 Lab Grown Radiant

Quick answer

As of October 2026, there are 16 lab grown radiant diamonds with I colour and VS2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $445 AUD to $3,467 AUD, with a median of $1,373 AUD. At least 35 retailers stock this exact specification, and 19% of the stones appear at more than one of them, with an average price spread of 136%. Half of all listings fall between $517 AUD and $1,731 AUD per carat. The same specification in natural form lists at a median of about $7,612 AUD per carat. Over the last 30 days the median price moved +6.7% and the number of listings moved +14.9%.

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

$280 AUD

Highest Price

$5,656 AUD

Average Price

$1,697 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

18.9%

Price Spread

136.5%

30-Day Price Trend

+6.7%

30-Day Supply Change

+14.9%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$626/ct

10th Percentile

$259

Median

$626

90th Percentile

$1,963

Score Distribution

45 diamonds scored across 4 quality tiers

Excellent

6 (13.3%)

Very Good

4 (8.9%)

Good

8 (17.8%)

Average

27 (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