How much does a 3.00 to 4.99ct H SI1 natural cushion diamond cost?

As of September 2026, 3.00 to 4.99ct H SI1 natural cushion diamonds typically cost ₹21,88,683 INR to ₹50,81,884 INR, with a median price of ₹32,67,726 INR. There are currently 362 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct H SI1 Natural Cushion

Quick answer

As of September 2026, there are 362 natural cushion diamonds with H colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run ₹21,88,683 INR to ₹50,81,884 INR, with a median of ₹32,67,726 INR. At least 47 retailers stock this exact specification. Half of all listings fall between ₹7,94,767 INR and ₹11,24,280 INR per carat. The same specification in lab grown form lists at a median of about ₹50,260 INR 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. Cushion natural stones in the index: 2,792 USD per carat, +1.1% 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

362

Lowest Price

₹13,30,417 INR

Highest Price

₹1,09,35,000 INR

Average Price

₹35,06,539 INR

Market Intelligence

Retailers Selling

Price Spread

34.4%

Price Range

Price per carat distribution across retailers

$11,485/ct

10th Percentile

$7,850

Median

$11,485

90th Percentile

$15,486

Score Distribution

362 diamonds scored across 4 quality tiers

Excellent

23 (6.4%)

Very Good

84 (23.2%)

Good

118 (32.6%)

Average

137 (37.8%)

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Lab-Grown H SI1Same specifications, lab-grown origin

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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