How much does a 5.00ct+ H SI1 lab grown marquise diamond cost?

As of November 2026, 5.00ct+ H SI1 lab grown marquise diamonds typically cost ₹85,628 INR to ₹3,83,886 INR, with a median price of ₹2,09,689 INR. There are currently 3 diamonds matching this specification available across retailers.

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

About 22% of these diamonds are available at multiple retailers, with an average price spread of 52%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ H SI1 Lab Grown Marquise

Quick answer

As of November 2026, there are 3 lab grown marquise diamonds with H colour and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run ₹85,628 INR to ₹3,83,886 INR, with a median of ₹2,09,689 INR. At least 13 retailers stock this exact specification, and 22% of the stones appear at more than one of them, with an average price spread of 52%. Half of all listings fall between ₹27,218 INR and ₹50,191 INR per carat.

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 lab grown stones in the index: 505 USD per carat, +1.6% 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

₹55,048 INR

Highest Price

₹8,61,783 INR

Average Price

₹2,22,500 INR

Market Intelligence

Retailers Selling

Cross Retailer %

22.2%

Price Spread

51.6%

Price Range

Price per carat distribution across retailers

$469/ct

10th Percentile

$135

Median

$469

90th Percentile

$808

Score Distribution

7 diamonds scored across 3 quality tiers

Very Good

2 (28.6%)

Good

2 (28.6%)

Average

3 (42.9%)

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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