How much does a 0.20 to 0.49ct I VS1 lab grown heart diamond cost?

As of October 2026, 0.20 to 0.49ct I VS1 lab grown heart diamonds typically cost €144 EUR to €144 EUR, with a median price of €144 EUR. There are currently 1 diamonds matching this specification available across retailers.

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

About 63% of these diamonds are available at multiple retailers, with an average price spread of 75%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct I VS1 Lab Grown Heart

Quick answer

As of October 2026, there are 1 lab grown heart diamonds with I colour and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run €144 EUR to €144 EUR, with a median of €144 EUR. At least 12 retailers stock this exact specification, and 63% of the stones appear at more than one of them, with an average price spread of 75%. Half of all listings fall between €356 EUR and €777 EUR per carat. The same specification in natural form lists at a median of about €1,295 EUR per carat.

Three of the best scored stones at this specification right now:

0.42ct Heart I VS1, IGI, grade A, from €144 EUR

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. Heart lab grown stones in the index: 421 USD per carat, -1.8% 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

€144 EUR

Highest Price

€753 EUR

Average Price

€144 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

62.5%

Price Spread

74.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$627/ct

10th Percentile

$211

Median

$627

90th Percentile

$1,623

Score Distribution

1 diamonds scored across 1 quality tiers

Excellent

1 (100.0%)

Find Your Diamond

Search 1 I VS1 heart diamonds and compare prices.

Search Diamonds

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