How much does a 5.00ct+ I VS1 lab grown radiant diamond cost?

As of October 2026, 5.00ct+ I VS1 lab grown radiant diamonds typically cost $761 USD to $7,519 USD, with a median price of $2,179 USD. There are currently 31 diamonds matching this specification available across retailers.

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

About 45% of these diamonds are available at multiple retailers, with an average price spread of 78%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ I VS1 Lab Grown Radiant

Quick answer

As of October 2026, there are 31 lab grown radiant diamonds with I color and VS1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $761 USD to $7,519 USD, with a median of $2,179 USD. At least 26 retailers stock this exact specification, and 45% of the stones appear at more than one of them, with an average price spread of 78%. Half of all listings fall between $344 USD and $743 USD per carat. The same specification in natural form lists at a median of about $18,674 USD per carat. Over the last 30 days the median price moved -21.7% and the number of listings moved +32.4%.

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

$603 USD

Highest Price

$71,087 USD

Average Price

$5,617 USD

Market Intelligence

Retailers Selling

Cross Retailer %

45.0%

Price Spread

78.5%

30-Day Price Trend

-21.7%

30-Day Supply Change

+32.4%

Volatility (30d)

0.10

Price Range

Price per carat distribution across retailers

$508/ct

10th Percentile

$269

Median

$508

90th Percentile

$1,327

Score Distribution

60 diamonds scored across 4 quality tiers

Excellent

17 (28.3%)

Very Good

13 (21.7%)

Good

13 (21.7%)

Average

17 (28.3%)

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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