How much does a 1.00 to 1.49ct E IF lab grown radiant diamond cost?

As of October 2026, 1.00 to 1.49ct E IF lab grown radiant diamonds typically cost $197 USD to $1,336 USD, with a median price of $389 USD. There are currently 256 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 117%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct E IF Lab Grown Radiant

Quick answer

As of October 2026, there are 256 lab grown radiant diamonds with E color and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $197 USD to $1,336 USD, with a median of $389 USD. At least 51 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 117%. Half of all listings fall between $329 USD and $1,013 USD per carat. The same specification in natural form lists at a median of about $7,435 USD per carat. Over the last 30 days the median price moved -2.8% and the number of listings moved +26.6%.

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

256

Lowest Price

$160 USD

Highest Price

$4,163 USD

Average Price

$603 USD

Market Intelligence

Retailers Selling

Cross Retailer %

41.8%

Price Spread

117.3%

30-Day Price Trend

-2.8%

30-Day Supply Change

+26.6%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$583/ct

10th Percentile

$221

Median

$583

90th Percentile

$1,523

Score Distribution

687 diamonds scored across 5 quality tiers

Exceptional

2 (0.3%)

Excellent

236 (34.4%)

Very Good

181 (26.3%)

Good

132 (19.2%)

Average

136 (19.8%)

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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