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

As of September 2026, 3.00 to 4.99ct E SI1 lab grown princess diamonds typically cost HK$3,463 HKD to HK$27,326 HKD, with a median price of HK$8,589 HKD. There are currently 123 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct E SI1 Lab Grown Princess

Quick answer

As of September 2026, there are 123 lab grown princess diamonds with E colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run HK$3,463 HKD to HK$27,326 HKD, with a median of HK$8,589 HKD. At least 27 retailers stock this exact specification. Half of all listings fall between HK$1,934 HKD and HK$6,756 HKD per carat. The same specification in natural form lists at a median of about HK$107,664 HKD 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

123

Lowest Price

HK$2,531 HKD

Highest Price

HK$74,000 HKD

Average Price

HK$11,177 HKD

Market Intelligence

Retailers Selling

Price Spread

167.1%

Price Range

Price per carat distribution across retailers

$375/ct

10th Percentile

$187

Median

$375

90th Percentile

$1,291

Score Distribution

123 diamonds scored across 4 quality tiers

Excellent

21 (17.1%)

Very Good

29 (23.6%)

Good

21 (17.1%)

Average

52 (42.3%)

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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