How much does a 3.00 to 4.99ct G SI1 lab grown princess diamond cost?

As of September 2026, 3.00 to 4.99ct G SI1 lab grown princess diamonds typically cost $723 SGD to $9,529 SGD, with a median price of $1,502 SGD. There are currently 113 diamonds matching this specification available across retailers.

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

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

3.00 to 4.99ct G SI1 Lab Grown Princess

Quick answer

As of September 2026, there are 113 lab grown princess diamonds with G colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $723 SGD to $9,529 SGD, with a median of $1,502 SGD. At least 26 retailers stock this exact specification. Half of all listings fall between $346 SGD and $1,242 SGD per carat. The same specification in natural form lists at a median of about $15,318 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. 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

113

Lowest Price

$403 SGD

Highest Price

$168,185 SGD

Average Price

$3,756 SGD

Market Intelligence

Retailers Selling

Price Spread

176.7%

Price Range

Price per carat distribution across retailers

$400/ct

10th Percentile

$207

Median

$400

90th Percentile

$2,154

Score Distribution

113 diamonds scored across 4 quality tiers

Excellent

13 (11.5%)

Very Good

31 (27.4%)

Good

31 (27.4%)

Average

38 (33.6%)

Find Your Diamond

Search 113 G 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.

G SI2SI2 inclusions are not visible without magnification

Save 25%

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