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

As of October 2026, 1.00 to 1.49ct I VS1 lab grown asscher diamonds typically cost $1,071 USD to $1,425 USD, with a median price of $1,240 USD. There are currently 9 diamonds matching this specification available across retailers.

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

About 7% of these diamonds are available at multiple retailers, with an average price spread of 53%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I VS1 Lab Grown Asscher

Quick answer

As of October 2026, there are 9 lab grown asscher diamonds with I color and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,071 USD to $1,425 USD, with a median of $1,240 USD. At least 28 retailers stock this exact specification, and 7% of the stones appear at more than one of them, with an average price spread of 53%. Half of all listings fall between $386 USD and $681 USD per carat. The same specification in natural form lists at a median of about $2,945 USD per carat. Over the last 30 days the median price moved +1.4% and the number of listings moved -8.3%.

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. Asscher lab grown stones in the index: 470 USD per carat, -4.3% 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

$439 USD

Highest Price

$1,520 USD

Average Price

$1,189 USD

Market Intelligence

Retailers Selling

Cross Retailer %

7.4%

Price Spread

53.4%

30-Day Price Trend

+1.4%

30-Day Supply Change

-8.3%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$552/ct

10th Percentile

$256

Median

$552

90th Percentile

$1,116

Score Distribution

12 diamonds scored across 3 quality tiers

Excellent

1 (8.3%)

Good

5 (41.7%)

Average

6 (50.0%)

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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