How much does a 0.50 to 0.74ct J SI1 lab grown round diamond cost?

As of October 2026, 0.50 to 0.74ct J SI1 lab grown round diamonds typically cost ₹45,725 INR to ₹1,53,370 INR, with a median price of ₹99,219 INR. There are currently 12 diamonds matching this specification available across retailers.

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

About 23% of these diamonds are available at multiple retailers, with an average price spread of 111%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct J SI1 Lab Grown Round

Quick answer

As of October 2026, there are 12 lab grown round diamonds with J colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run ₹45,725 INR to ₹1,53,370 INR, with a median of ₹99,219 INR. At least 20 retailers stock this exact specification, and 23% of the stones appear at more than one of them, with an average price spread of 111%. Half of all listings fall between ₹57,323 INR and ₹1,60,618 INR per carat. The same specification in natural form lists at a median of about ₹1,18,149 INR per carat. Over the last 30 days the median price moved -27.0% and the number of listings moved -74.3%.

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. Round lab grown stones in the index: 414 USD per carat, -5.0% 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

₹22,853 INR

Highest Price

₹1,77,681 INR

Average Price

₹94,380 INR

Market Intelligence

Retailers Selling

Cross Retailer %

23.4%

Price Spread

111.2%

30-Day Price Trend

-27.0%

30-Day Supply Change

-74.3%

Volatility (30d)

0.20

Price Range

Price per carat distribution across retailers

$975/ct

10th Percentile

$450

Median

$975

90th Percentile

$2,096

Score Distribution

31 diamonds scored across 4 quality tiers

Excellent

1 (3.2%)

Very Good

4 (12.9%)

Good

17 (54.8%)

Average

9 (29.0%)

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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