How much does a 2.00 to 2.99ct I SI1 lab grown round diamond cost?

As of October 2026, 2.00 to 2.99ct I SI1 lab grown round diamonds typically cost $2,167 CAD to $13,759 CAD, with a median price of $2,687 CAD. There are currently 302 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 77%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct I SI1 Lab Grown Round

Quick answer

As of October 2026, there are 302 lab grown round diamonds with I color and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $2,167 CAD to $13,759 CAD, with a median of $2,687 CAD. At least 33 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 77%. Half of all listings fall between $1,487 CAD and $3,125 CAD per carat. The same specification in natural form lists at a median of about $11,953 CAD per carat. Over the last 30 days the median price moved +0.4% and the number of listings moved -1.8%.

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

302

Lowest Price

$628 CAD

Highest Price

$16,608 CAD

Average Price

$6,086 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

35.8%

Price Spread

76.9%

30-Day Price Trend

+0.4%

30-Day Supply Change

-1.8%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,521/ct

10th Percentile

$449

Median

$1,521

90th Percentile

$4,079

Score Distribution

565 diamonds scored across 4 quality tiers

Excellent

255 (45.1%)

Very Good

74 (13.1%)

Good

8 (1.4%)

Average

228 (40.4%)

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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