How much does a 1.00 to 1.49ct G IF natural round diamond cost?

As of September 2026, 1.00 to 1.49ct G IF natural round diamonds typically cost £3,090 GBP to £7,248 GBP, with a median price of £4,610 GBP. There are currently 1,809 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct G IF Natural Round

Quick answer

As of September 2026, there are 1,809 natural round diamonds with G colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £3,090 GBP to £7,248 GBP, with a median of £4,610 GBP. At least 62 retailers stock this exact specification. Half of all listings fall between £4,028 GBP and £5,837 GBP per carat. The same specification in lab grown form lists at a median of about £410 GBP per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Round natural stones in the index: 2,094 USD per carat, -3.8% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

1,809

Lowest Price

£1,719 GBP

Highest Price

£19,124 GBP

Average Price

£4,996 GBP