How much does a 0.20 to 0.49ct D SI2 natural cushion diamond cost?

As of October 2026, 0.20 to 0.49ct D SI2 natural cushion diamonds typically cost $379 CAD to $1,132 CAD, with a median price of $609 CAD. There are currently 40 diamonds matching this specification available across retailers.

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

About 26% of these diamonds are available at multiple retailers, with an average price spread of 31%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct D SI2 Natural Cushion

Quick answer

As of October 2026, there are 40 natural cushion diamonds with D color and SI2 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $379 CAD to $1,132 CAD, with a median of $609 CAD. At least 8 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 31%. Half of all listings fall between $1,665 CAD and $2,234 CAD per carat. Over the last 30 days the median price moved -0.3% and the number of listings moved +6.0%.

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. Cushion natural stones in the index: 2,948 USD per carat, +1.7% 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

$220 CAD

Highest Price

$2,045 CAD

Average Price

$678 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

26.1%

Price Spread

31.0%

30-Day Price Trend

-0.3%

30-Day Supply Change

+6.0%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,311/ct

10th Percentile

$947

Median

$1,311

90th Percentile

$2,014

Score Distribution

114 diamonds scored across 4 quality tiers

Excellent

26 (22.8%)

Very Good

30 (26.3%)

Good

41 (36.0%)

Average

17 (14.9%)

Find Your Diamond

Search 40 D SI2 cushion diamonds and compare prices.

Search Diamonds

Consider Instead

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

D I1I1 inclusions are not visible without magnification

Save 11%

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