How much does a 1.00 to 1.49ct D SI2 natural cushion diamond cost?

As of September 2026, 1.00 to 1.49ct D SI2 natural cushion diamonds typically cost $2,201 CAD to $7,456 CAD, with a median price of $3,802 CAD. There are currently 506 diamonds matching this specification available across retailers.

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1.00 to 1.49ct D SI2 Natural Cushion

Quick answer

As of September 2026, there are 506 natural cushion diamonds with D color and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,201 CAD to $7,456 CAD, with a median of $3,802 CAD. At least 47 retailers stock this exact specification. Half of all listings fall between $2,587 CAD and $4,535 CAD per carat. The same specification in lab grown form lists at a median of about $729 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. Cushion natural stones in the index: 2,792 USD per carat, +1.1% 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

506

Lowest Price

$1,268 CAD

Highest Price

$19,101 CAD

Average Price

$4,454 CAD

Market Intelligence

Retailers Selling

Price Spread

57.3%

Price Range

Price per carat distribution across retailers

$2,452/ct

10th Percentile

$1,528

Median

$2,452

90th Percentile

$4,263

Score Distribution

506 diamonds scored across 4 quality tiers

Excellent

73 (14.4%)

Very Good

107 (21.1%)

Good

177 (35.0%)

Average

149 (29.4%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

Lab-Grown D SI2Same specifications, lab-grown origin

Save 73%

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