How much does a 5.00ct+ D SI1 lab grown princess diamond cost?

As of September 2026, 5.00ct+ D SI1 lab grown princess diamonds typically cost $2,164 NZD to $3,120 NZD, with a median price of $2,805 NZD. There are currently 3 diamonds matching this specification available across retailers.

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

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

5.00ct+ D SI1 Lab Grown Princess

Quick answer

As of September 2026, there are 3 lab grown princess diamonds with D colour and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $2,164 NZD to $3,120 NZD, with a median of $2,805 NZD. At least 9 retailers stock this exact specification. Half of all listings fall between $348 NZD and $1,051 NZD per carat. The same specification in natural form lists at a median of about $39,691 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. Princess lab grown stones in the index: 481 USD per carat, -7.3% 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

$2,003 NZD

Highest Price

$3,198 NZD

Average Price

$2,669 NZD

Market Intelligence

Retailers Selling

Price Spread

146.7%

Price Range

Price per carat distribution across retailers

$287/ct

10th Percentile

$172

Median

$287

90th Percentile

$1,434

Score Distribution

3 diamonds scored across 2 quality tiers

Very Good

2 (66.7%)

Good

1 (33.3%)

Find Your Diamond

Search 3 D SI1 princess diamonds and compare prices.

Search Diamonds

Consider Instead

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

D SI2SI2 inclusions are not visible without magnification

Save 17%

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