How much does a 1.50 to 1.99ct E SI1 natural asscher diamond cost?

As of October 2026, 1.50 to 1.99ct E SI1 natural asscher diamonds typically cost £3,724 GBP to £11,482 GBP, with a median price of £7,220 GBP. There are currently 44 diamonds matching this specification available across retailers.

Where can I find the best price on a E SI1 asscher diamond?

About 32% of these diamonds are available at multiple retailers, with an average price spread of 61%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct E SI1 Natural Asscher

Quick answer

As of October 2026, there are 44 natural asscher diamonds with E colour and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £3,724 GBP to £11,482 GBP, with a median of £7,220 GBP. At least 53 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 61%. Half of all listings fall between £3,100 GBP and £5,585 GBP per carat. The same specification in lab grown form lists at a median of about £307 GBP per carat. Over the last 30 days the median price moved -0.3% and the number of listings moved +6.7%.

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

£2,951 GBP

Highest Price

£19,425 GBP

Average Price

£7,602 GBP