How much does a 3.00 to 4.99ct H SI2 lab grown oval diamond cost?

As of September 2026, 3.00 to 4.99ct H SI2 lab grown oval diamonds typically cost $1,221 CAD to $94,276 CAD, with a median price of $55,506 CAD. There are currently 28 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI2 oval diamond?

Compare prices across retailers on Carat Hunter to see all your options.

3.00 to 4.99ct H SI2 Lab Grown Oval

Quick answer

As of September 2026, there are 28 lab grown oval diamonds with H color and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $1,221 CAD to $94,276 CAD, with a median of $55,506 CAD. At least 18 retailers stock this exact specification. Half of all listings fall between $3,120 CAD and $19,291 CAD per carat. The same specification in natural form lists at a median of about $15,060 CAD per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Oval lab grown stones in the index: 487 USD per carat, -11.2% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$810 CAD

Highest Price

$108,774 CAD

Average Price

$46,332 CAD

Market Intelligence

Retailers Selling

Price Spread

122.8%

Price Range

Price per carat distribution across retailers

$9,505/ct

10th Percentile

$388

Median

$9,505

90th Percentile

$15,395

Score Distribution

28 diamonds scored across 3 quality tiers

Very Good

4 (14.3%)

Good

7 (25.0%)

Average

17 (60.7%)

Find Your Diamond

Search 28 H SI2 oval diamonds and compare prices.

Search Diamonds

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