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

As of October 2026, 1.00 to 1.49ct E IF lab grown round diamonds typically cost £155 GBP to £958 GBP, with a median price of £358 GBP. There are currently 1,145 diamonds matching this specification available across retailers.

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

About 47% of these diamonds are available at multiple retailers, with an average price spread of 106%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct E IF Lab Grown Round

Quick answer

As of October 2026, there are 1,145 lab grown round diamonds with E colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £155 GBP to £958 GBP, with a median of £358 GBP. At least 55 retailers stock this exact specification, and 47% of the stones appear at more than one of them, with an average price spread of 106%. Half of all listings fall between £267 GBP and £684 GBP per carat. The same specification in natural form lists at a median of about £8,034 GBP per carat. Over the last 30 days the median price moved -3.5% and the number of listings moved +23.0%.

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. Round lab grown stones in the index: 414 USD per carat, -5.0% 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

1,145

Lowest Price

£132 GBP

Highest Price

£3,191 GBP

Average Price

£475 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

47.2%

Price Spread

105.6%

30-Day Price Trend

-3.5%

30-Day Supply Change

+23.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$526/ct

10th Percentile

$231

Median

$526

90th Percentile

$1,215

Score Distribution

3.0K diamonds scored across 5 quality tiers

Exceptional

20 (0.7%)

Excellent

1,127 (37.8%)

Very Good

468 (15.7%)

Good

465 (15.6%)

Average

905 (30.3%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F IFF colour is visually identical to E to the naked eye

Save 10%

E VVS1VVS1 inclusions are not visible without magnification

Save 23%

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