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

As of October 2026, 1.00 to 1.49ct E IF lab grown oval diamonds typically cost £156 GBP to £1,093 GBP, with a median price of £289 GBP. There are currently 446 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 124%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct E IF Lab Grown Oval

Quick answer

As of October 2026, there are 446 lab grown oval diamonds with E colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £156 GBP to £1,093 GBP, with a median of £289 GBP. At least 55 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 124%. Half of all listings fall between £227 GBP and £736 GBP per carat. The same specification in natural form lists at a median of about £6,221 GBP per carat. Over the last 30 days the median price moved -4.1% and the number of listings moved +17.1%.

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. Oval lab grown stones in the index: 453 USD per carat, -7.4% 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

446

Lowest Price

£128 GBP

Highest Price

£2,754 GBP

Average Price

£473 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

42.2%

Price Spread

123.6%

30-Day Price Trend

-4.1%

30-Day Supply Change

+17.1%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$551/ct

10th Percentile

$217

Median

$551

90th Percentile

$1,385

Score Distribution

1.1K diamonds scored across 4 quality tiers

Excellent

473 (43.8%)

Very Good

236 (21.9%)

Good

188 (17.4%)

Average

183 (16.9%)

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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