How much does a 5.00ct+ F SI1 lab grown cushion diamond cost?

As of October 2026, 5.00ct+ F SI1 lab grown cushion diamonds typically cost ₹74,160 INR to ₹3,55,755 INR, with a median price of ₹1,25,324 INR. There are currently 40 diamonds matching this specification available across retailers.

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

About 48% of these diamonds are available at multiple retailers, with an average price spread of 125%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ F SI1 Lab Grown Cushion

Quick answer

As of October 2026, there are 40 lab grown cushion diamonds with F colour and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run ₹74,160 INR to ₹3,55,755 INR, with a median of ₹1,25,324 INR. At least 17 retailers stock this exact specification, and 48% of the stones appear at more than one of them, with an average price spread of 125%. Half of all listings fall between ₹24,262 INR and ₹66,336 INR per carat. The same specification in natural form lists at a median of about ₹18,26,856 INR per carat. Over the last 30 days the median price moved -11.8% and the number of listings moved +16.7%.

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

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Cushion lab grown stones in the index: 516 USD per carat, +6.9% 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: October 2026

Available

Lowest Price

₹59,722 INR

Highest Price

₹20,88,175 INR

Average Price

₹1,74,312 INR

Market Intelligence

Retailers Selling

Cross Retailer %

47.8%

Price Spread

124.9%

30-Day Price Trend

-11.8%

30-Day Supply Change

+16.7%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$354/ct

10th Percentile

$208

Median

$354

90th Percentile

$974

Score Distribution

83 diamonds scored across 4 quality tiers

Excellent

33 (39.8%)

Very Good

12 (14.5%)

Good

18 (21.7%)

Average

20 (24.1%)

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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