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

As of October 2026, 5.00ct+ I SI1 lab grown pear diamonds typically cost $61,471 USD to $341,348 USD, with a median price of $300,130 USD. There are currently 1 diamonds matching this specification available across retailers.

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

About 43% of these diamonds are available at multiple retailers, with an average price spread of 149%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ I SI1 Lab Grown Pear

Quick answer

As of October 2026, there are 1 lab grown pear diamonds with I color and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $61,471 USD to $341,348 USD, with a median of $300,130 USD. At least 12 retailers stock this exact specification, and 43% of the stones appear at more than one of them, with an average price spread of 149%. Half of all listings fall between $198 USD and $533 USD per carat. The same specification in natural form lists at a median of about $15,896 USD per carat.

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

5.05ct Pear I SI1, IGI, grade B+, from $1,806 USD

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. Pear lab grown stones in the index: 452 USD per carat, -5.1% 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

Lowest Price

$1,806 USD

Highest Price

$351,653 USD

Average Price

$217,863 USD

Market Intelligence

Retailers Selling

Cross Retailer %

42.9%

Price Spread

148.7%

Price Range

Price per carat distribution across retailers

$225/ct

10th Percentile

$140

Median

$225

90th Percentile

$616

Score Distribution

3 diamonds scored across 2 quality tiers

Very Good

1 (33.3%)

Good

2 (66.7%)

Find Your Diamond

Search 1 I SI1 pear 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