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

As of September 2026, 5.00ct+ I SI1 lab grown princess diamonds typically cost ₹9,37,740 INR to ₹13,37,894 INR, with a median price of ₹11,24,459 INR. There are currently 15 diamonds matching this specification available across retailers.

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

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

5.00ct+ I SI1 Lab Grown Princess

Quick answer

As of September 2026, there are 15 lab grown princess diamonds with I colour and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run ₹9,37,740 INR to ₹13,37,894 INR, with a median of ₹11,24,459 INR. At least 11 retailers stock this exact specification. Half of all listings fall between ₹1,15,458 INR and ₹3,93,761 INR per carat. The same specification in natural form lists at a median of about ₹14,52,496 INR per carat.

Three of the best scored stones at this specification right now:

5.02ct Princess I SI1, IGI, score 68 of 100, from ₹11,61,500 INR

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

₹9,24,862 INR

Highest Price

₹14,79,319 INR

Average Price

₹11,11,575 INR

Market Intelligence

Retailers Selling

Price Spread

148.1%

Price Range

Price per carat distribution across retailers

$1,959/ct

10th Percentile

$475

Median

$1,959

90th Percentile

$4,414

Score Distribution

15 diamonds scored across 1 quality tiers

Good

15 (100.0%)

Find Your Diamond

Search 15 I SI1 princess diamonds and compare prices.

Search Diamonds

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