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

As of September 2026, 1.00 to 1.49ct G IF natural cushion diamonds typically cost £1,675 GBP to £4,805 GBP, with a median price of £2,768 GBP. There are currently 143 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

1.00 to 1.49ct G IF Natural Cushion

Quick answer

As of September 2026, there are 143 natural cushion diamonds with G colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £1,675 GBP to £4,805 GBP, with a median of £2,768 GBP. At least 46 retailers stock this exact specification. Half of all listings fall between £2,034 GBP and £3,647 GBP per carat. The same specification in lab grown form lists at a median of about £672 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. Cushion natural stones in the index: 2,792 USD per carat, +1.1% 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

143

Lowest Price

£1,298 GBP

Highest Price

£9,244 GBP

Average Price

£2,961 GBP