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

As of September 2026, 1.00 to 1.49ct E SI1 natural marquise diamonds typically cost $5,467 NZD to $13,035 NZD, with a median price of $7,784 NZD. There are currently 599 diamonds matching this specification available across retailers.

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

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

1.00 to 1.49ct E SI1 Natural Marquise

Quick answer

As of September 2026, there are 599 natural marquise diamonds with E colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $5,467 NZD to $13,035 NZD, with a median of $7,784 NZD. At least 59 retailers stock this exact specification. Half of all listings fall between $6,385 NZD and $9,118 NZD per carat. The same specification in lab grown form lists at a median of about $618 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. Marquise natural stones in the index: 2,114 USD per carat, -8.8% 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

599

Lowest Price

$2,155 NZD

Highest Price

$44,010 NZD

Average Price

$8,666 NZD