How much does a 1.00 to 1.49ct J SI1 lab grown round diamond cost?

As of November 2026, 1.00 to 1.49ct J SI1 lab grown round diamonds typically cost ₹58,584 INR to ₹2,20,766 INR, with a median price of ₹83,296 INR. There are currently 35 diamonds matching this specification available across retailers.

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

About 28% of these diamonds are available at multiple retailers, with an average price spread of 87%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct J SI1 Lab Grown Round

Quick answer

As of November 2026, there are 35 lab grown round diamonds with J colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run ₹58,584 INR to ₹2,20,766 INR, with a median of ₹83,296 INR. At least 30 retailers stock this exact specification, and 28% of the stones appear at more than one of them, with an average price spread of 87%. Half of all listings fall between ₹74,278 INR and ₹1,74,501 INR per carat. The same specification in natural form lists at a median of about ₹2,16,855 INR per carat. Over the last 30 days the median price moved -11.6% and the number of listings moved -31.7%.

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. 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: November 2026

Available

Lowest Price

₹22,028 INR

Highest Price

₹5,24,497 INR

Average Price

₹1,26,715 INR

Market Intelligence

Retailers Selling

Cross Retailer %

28.3%

Price Spread

86.9%

30-Day Price Trend

-11.6%

30-Day Supply Change

-31.7%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$1,215/ct

10th Percentile

$501

Median

$1,215

90th Percentile

$2,950

Score Distribution

92 diamonds scored across 4 quality tiers

Excellent

26 (28.3%)

Very Good

9 (9.8%)

Good

22 (23.9%)

Average

35 (38.0%)

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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