How much does a 1.00 to 1.49ct G SI2 natural asscher diamond cost?

As of October 2026, 1.00 to 1.49ct G SI2 natural asscher diamonds typically cost £1,374 GBP to £4,037 GBP, with a median price of £2,193 GBP. There are currently 37 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI2 asscher diamond?

About 25% of these diamonds are available at multiple retailers, with an average price spread of 50%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct G SI2 Natural Asscher

Quick answer

As of October 2026, there are 37 natural asscher diamonds with G colour and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £1,374 GBP to £4,037 GBP, with a median of £2,193 GBP. At least 43 retailers stock this exact specification, and 25% of the stones appear at more than one of them, with an average price spread of 50%. Half of all listings fall between £1,582 GBP and £2,614 GBP per carat. The same specification in lab grown form lists at a median of about £291 GBP per carat. Over the last 30 days the median price moved -1.5% and the number of listings moved +9.3%.

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. Asscher natural stones in the index: 2,504 USD per carat, -3.3% 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

Lowest Price

£832 GBP

Highest Price

£7,777 GBP

Average Price

£2,513 GBP