How much does a 1.00 to 1.49ct J SI1 natural marquise diamond cost?

As of September 2026, 1.00 to 1.49ct J SI1 natural marquise diamonds typically cost ₹1,58,528 INR to ₹4,98,888 INR, with a median price of ₹2,72,470 INR. There are currently 605 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct J SI1 Natural Marquise

Quick answer

As of September 2026, there are 605 natural marquise diamonds with J colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run ₹1,58,528 INR to ₹4,98,888 INR, with a median of ₹2,72,470 INR. At least 49 retailers stock this exact specification. Half of all listings fall between ₹1,85,465 INR and ₹2,88,914 INR per carat. The same specification in lab grown form lists at a median of about ₹1,40,049 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. Marquise natural stones in the index: 2,114 USD per carat, -8.8% 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

605

Lowest Price

₹95,077 INR

Highest Price

₹12,07,309 INR

Average Price

₹2,99,574 INR

Market Intelligence

Retailers Selling

Price Spread

44.1%

Price Range

Price per carat distribution across retailers

$2,444/ct

10th Percentile

$1,553

Median

$2,444

90th Percentile

$3,599

Score Distribution

605 diamonds scored across 4 quality tiers

Excellent

37 (6.1%)

Very Good

90 (14.9%)

Good

185 (30.6%)

Average

293 (48.4%)

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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