How much does a 3.00 to 4.99ct I I1 natural cushion diamond cost?

As of November 2026, 3.00 to 4.99ct I I1 natural cushion diamonds typically cost ₹15,07,436 INR to ₹1,02,05,482 INR, with a median price of ₹46,18,653 INR. There are currently 6 diamonds matching this specification available across retailers.

Where can I find the best price on a I I1 cushion diamond?

About 24% of these diamonds are available at multiple retailers, with an average price spread of 34%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct I I1 Natural Cushion

Quick answer

As of November 2026, there are 6 natural cushion diamonds with I colour and I1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run ₹15,07,436 INR to ₹1,02,05,482 INR, with a median of ₹46,18,653 INR. At least 11 retailers stock this exact specification, and 24% of the stones appear at more than one of them, with an average price spread of 34%. Half of all listings fall between ₹4,71,657 INR and ₹6,58,907 INR per carat.

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

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. Cushion natural stones in the index: 2,948 USD per carat, +1.7% 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: November 2026

Available

Lowest Price

₹11,20,711 INR

Highest Price

₹1,11,32,223 INR

Average Price

₹50,22,784 INR

Market Intelligence

Retailers Selling

Cross Retailer %

23.8%

Price Spread

34.0%

Price Range

Price per carat distribution across retailers

$5,799/ct

10th Percentile

$4,012

Median

$5,799

90th Percentile

$7,724

Score Distribution

28 diamonds scored across 4 quality tiers

Excellent

2 (7.1%)

Very Good

5 (17.9%)

Good

1 (3.6%)

Average

20 (71.4%)

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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