How much does a 1.50 to 1.99ct J SI1 natural marquise diamond cost?

As of November 2026, 1.50 to 1.99ct J SI1 natural marquise diamonds typically cost ₹4,18,255 INR to ₹15,54,597 INR, with a median price of ₹7,30,467 INR. There are currently 90 diamonds matching this specification available across retailers.

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

About 39% of these diamonds are available at multiple retailers, with an average price spread of 51%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct J SI1 Natural Marquise

Quick answer

As of November 2026, there are 90 natural marquise diamonds with J colour and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run ₹4,18,255 INR to ₹15,54,597 INR, with a median of ₹7,30,467 INR. At least 53 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 51%. Half of all listings fall between ₹3,10,312 INR and ₹5,19,954 INR per carat. The same specification in lab grown form lists at a median of about ₹1,03,779 INR per carat. Over the last 30 days the median price moved -1.6% and the number of listings moved +22.7%.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise natural stones in the index: 2,177 USD per carat, -4.2% 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

₹2,59,666 INR

Highest Price

₹20,74,658 INR

Average Price

₹8,23,016 INR

Market Intelligence

Retailers Selling

Cross Retailer %

39.5%

Price Spread

51.2%

30-Day Price Trend

-1.6%

30-Day Supply Change

+22.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,313/ct

10th Percentile

$2,348

Median

$4,313

90th Percentile

$6,613

Score Distribution

194 diamonds scored across 4 quality tiers

Excellent

14 (7.2%)

Very Good

43 (22.2%)

Good

45 (23.2%)

Average

92 (47.4%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

J SI2SI2 inclusions are not visible without magnification

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Lab-Grown J 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