How much does a 1.00 to 1.49ct G FL lab grown oval diamond cost?

As of November 2026, 1.00 to 1.49ct G FL lab grown oval diamonds typically cost £149 GBP to £149 GBP, with a median price of £149 GBP. There are currently 1 diamonds matching this specification available across retailers.

Where can I find the best price on a G FL oval diamond?

About 53% of these diamonds are available at multiple retailers, with an average price spread of 110%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct G FL Lab Grown Oval

Quick answer

As of November 2026, there are 1 lab grown oval diamonds with G colour and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £149 GBP to £149 GBP, with a median of £149 GBP. At least 29 retailers stock this exact specification, and 53% of the stones appear at more than one of them, with an average price spread of 110%. Half of all listings fall between £312 GBP and £911 GBP per carat. The same specification in natural form lists at a median of about £4,731 GBP per carat. Over the last 30 days the median price moved -5.7% and the number of listings moved +14.3%.

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

1.03ct Oval G FL, IGI, grade A, from £149 GBP

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: November 2026

Available

Lowest Price

£149 GBP

Highest Price

£1,388 GBP

Average Price

£149 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

52.9%

Price Spread

110.2%

30-Day Price Trend

-5.7%

30-Day Supply Change

+14.3%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$728/ct

10th Percentile

$225

Median

$728

90th Percentile

$1,797

Score Distribution

1 diamonds scored across 1 quality tiers

Excellent

1 (100.0%)

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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