How much does a 0.50 to 0.74ct D SI1 natural cushion diamond cost?

As of October 2026, 0.50 to 0.74ct D SI1 natural cushion diamonds typically cost ₹44,739 INR to ₹1,51,603 INR, with a median price of ₹75,622 INR. There are currently 293 diamonds matching this specification available across retailers.

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

About 33% of these diamonds are available at multiple retailers, with an average price spread of 72%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct D SI1 Natural Cushion

Quick answer

As of October 2026, there are 293 natural cushion diamonds with D colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run ₹44,739 INR to ₹1,51,603 INR, with a median of ₹75,622 INR. At least 54 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 72%. Half of all listings fall between ₹1,02,297 INR and ₹1,94,199 INR per carat. The same specification in lab grown form lists at a median of about ₹52,739 INR per carat. Over the last 30 days the median price moved -2.9% and the number of listings moved +5.0%.

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: October 2026

Available

293

Lowest Price

₹30,772 INR

Highest Price

₹3,40,614 INR

Average Price

₹89,467 INR

Market Intelligence

Retailers Selling

Cross Retailer %

32.7%

Price Spread

72.5%

30-Day Price Trend

-2.9%

30-Day Supply Change

+5.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,331/ct

10th Percentile

$875

Median

$1,331

90th Percentile

$2,864

Score Distribution

770 diamonds scored across 4 quality tiers

Excellent

152 (19.7%)

Very Good

111 (14.4%)

Good

275 (35.7%)

Average

232 (30.1%)

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Consider Instead

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D SI2SI2 inclusions are not visible without magnification

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Lab-Grown D 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