How much does a 1.50 to 1.99ct D SI2 lab grown round diamond cost?

As of October 2026, 1.50 to 1.99ct D SI2 lab grown round diamonds typically cost ₹27,962 INR to ₹2,13,500 INR, with a median price of ₹80,213 INR. There are currently 78 diamonds matching this specification available across retailers.

Where can I find the best price on a D SI2 round diamond?

About 25% of these diamonds are available at multiple retailers, with an average price spread of 123%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct D SI2 Lab Grown Round

Quick answer

As of October 2026, there are 78 lab grown round diamonds with D colour and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run ₹27,962 INR to ₹2,13,500 INR, with a median of ₹80,213 INR. At least 31 retailers stock this exact specification, and 25% of the stones appear at more than one of them, with an average price spread of 123%. Half of all listings fall between ₹17,594 INR and ₹66,258 INR per carat. The same specification in natural form lists at a median of about ₹4,74,233 INR per carat. Over the last 30 days the median price moved +2.2% and the number of listings moved +9.5%.

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

₹17,530 INR

Highest Price

₹2,76,569 INR

Average Price

₹1,10,727 INR

Market Intelligence

Retailers Selling

Cross Retailer %

24.6%

Price Spread

122.7%

30-Day Price Trend

+2.2%

30-Day Supply Change

+9.5%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$416/ct

10th Percentile

$144

Median

$416

90th Percentile

$1,247

Score Distribution

120 diamonds scored across 4 quality tiers

Excellent

16 (13.3%)

Very Good

26 (21.7%)

Good

25 (20.8%)

Average

53 (44.2%)

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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