How much does a 5.00ct+ I SI1 natural asscher diamond cost?

As of September 2026, 5.00ct+ I SI1 natural asscher diamonds typically cost $57,383 SGD to $98,177 SGD, with a median price of $97,607 SGD. There are currently 3 diamonds matching this specification available across retailers.

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

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

5.00ct+ I SI1 Natural Asscher

Quick answer

As of September 2026, there are 3 natural asscher diamonds with I colour and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $57,383 SGD to $98,177 SGD, with a median of $97,607 SGD. At least 9 retailers stock this exact specification. Half of all listings fall between $19,350 SGD and $35,581 SGD per carat. The same specification in lab grown form lists at a median of about $2,369 SGD 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. Asscher natural stones in the index: 2,601 USD per carat, +11.1% 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

Lowest Price

$47,327 SGD

Highest Price

$98,319 SGD

Average Price

$81,084 SGD