How much does a 3.00 to 4.99ct G SI1 lab grown cushion diamond cost?

As of September 2026, 3.00 to 4.99ct G SI1 lab grown cushion diamonds typically cost ₹61,262 INR to ₹4,23,903 INR, with a median price of ₹1,14,622 INR. There are currently 160 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

3.00 to 4.99ct G SI1 Lab Grown Cushion

Quick answer

As of September 2026, there are 160 lab grown cushion diamonds with G colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run ₹61,262 INR to ₹4,23,903 INR, with a median of ₹1,14,622 INR. At least 29 retailers stock this exact specification. Half of all listings fall between ₹27,460 INR and ₹84,888 INR per carat. The same specification in natural form lists at a median of about ₹14,77,996 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. Cushion lab grown stones in the index: 466 USD per carat, -14.7% 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

160

Lowest Price

₹30,707 INR

Highest Price

₹50,69,424 INR

Average Price

₹2,35,843 INR

Market Intelligence

Retailers Selling

Price Spread

152.4%

Price Range

Price per carat distribution across retailers

$393/ct

10th Percentile

$227

Median

$393

90th Percentile

$1,347

Score Distribution

160 diamonds scored across 4 quality tiers

Excellent

23 (14.4%)

Very Good

37 (23.1%)

Good

44 (27.5%)

Average

56 (35.0%)

Find Your Diamond

Search 160 G SI1 cushion diamonds and compare prices.

Search Diamonds

Consider Instead

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

G SI2SI2 inclusions are not visible without magnification

Save 13%

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