How much does a 0.50 to 0.74ct E SI1 natural princess diamond cost?

As of October 2026, 0.50 to 0.74ct E SI1 natural princess diamonds typically cost $973 NZD to $2,197 NZD, with a median price of $1,413 NZD. There are currently 1,163 diamonds matching this specification available across retailers.

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

About 40% of these diamonds are available at multiple retailers, with an average price spread of 32%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct E SI1 Natural Princess

Quick answer

As of October 2026, there are 1,163 natural princess diamonds with E colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $973 NZD to $2,197 NZD, with a median of $1,413 NZD. At least 57 retailers stock this exact specification, and 40% of the stones appear at more than one of them, with an average price spread of 32%. Half of all listings fall between $2,045 NZD and $2,781 NZD per carat. The same specification in lab grown form lists at a median of about $959 NZD per carat. Over the last 30 days the median price moved -2.1% and the number of listings moved +42.4%.

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. Princess natural stones in the index: 2,158 USD per carat, +5.7% 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

1,163

Lowest Price

$681 NZD

Highest Price

$4,106 NZD

Average Price

$1,525 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

39.7%

Price Spread

31.9%

30-Day Price Trend

-2.1%

30-Day Supply Change

+42.4%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,297/ct

10th Percentile

$1,033

Median

$1,297

90th Percentile

$2,131

Score Distribution

2.5K diamonds scored across 5 quality tiers

Exceptional

1 (0.0%)

Excellent

530 (21.1%)

Very Good

592 (23.5%)

Good

337 (13.4%)

Average

1,055 (41.9%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F SI1F colour is visually identical to E to the naked eye

Save 8%

E SI2SI2 inclusions are not visible without magnification

Save 12%

Lab-Grown E SI1Same specifications, lab-grown origin

Save 58%

Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1