How much does a 1.00 to 1.49ct E SI1 natural oval diamond cost?

As of September 2026, 1.00 to 1.49ct E SI1 natural oval diamonds typically cost $4,086 NZD to $9,671 NZD, with a median price of $5,869 NZD. There are currently 2,118 diamonds matching this specification available across retailers.

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

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

1.00 to 1.49ct E SI1 Natural Oval

Quick answer

As of September 2026, there are 2,118 natural oval diamonds with E colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $4,086 NZD to $9,671 NZD, with a median of $5,869 NZD. At least 61 retailers stock this exact specification. Half of all listings fall between $4,970 NZD and $6,727 NZD per carat. The same specification in lab grown form lists at a median of about $714 NZD 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. Oval natural stones in the index: 2,380 USD per carat, -9.6% 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

2,118

Lowest Price

$1,919 NZD

Highest Price

$27,204 NZD

Average Price

$6,502 NZD