How much does a 3.00 to 4.99ct H SI1 lab grown radiant diamond cost?

As of September 2026, 3.00 to 4.99ct H SI1 lab grown radiant diamonds typically cost ₹72,052 INR to ₹49,28,981 INR, with a median price of ₹3,11,287 INR. There are currently 60 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct H SI1 Lab Grown Radiant

Quick answer

As of September 2026, there are 60 lab grown radiant diamonds with H colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run ₹72,052 INR to ₹49,28,981 INR, with a median of ₹3,11,287 INR. At least 25 retailers stock this exact specification. Half of all listings fall between ₹53,145 INR and ₹1,68,154 INR per carat. The same specification in natural form lists at a median of about ₹11,68,636 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. Radiant lab grown stones in the index: 473 USD per carat, -12.5% 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

Lowest Price

₹55,998 INR

Highest Price

₹89,30,931 INR

Average Price

₹12,30,817 INR

Market Intelligence

Retailers Selling

Price Spread

113.5%

Price Range

Price per carat distribution across retailers

$1,060/ct

10th Percentile

$269

Median

$1,060

90th Percentile

$3,382

Score Distribution

60 diamonds scored across 4 quality tiers

Excellent

4 (6.7%)

Very Good

23 (38.3%)

Good

19 (31.7%)

Average

14 (23.3%)

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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