How much does a 0.20 to 0.49ct D SI1 natural asscher diamond cost?

As of October 2026, 0.20 to 0.49ct D SI1 natural asscher diamonds typically cost $275 USD to $907 USD, with a median price of $666 USD. There are currently 18 diamonds matching this specification available across retailers.

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

About 30% of these diamonds are available at multiple retailers, with an average price spread of 32%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct D SI1 Natural Asscher

Quick answer

As of October 2026, there are 18 natural asscher diamonds with D color and SI1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $275 USD to $907 USD, with a median of $666 USD. At least 32 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 32%. Half of all listings fall between $1,424 USD and $1,952 USD per carat. Over the last 30 days the median price moved -3.3% and the number of listings moved -10.7%.

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. Asscher natural stones in the index: 2,504 USD per carat, -3.3% 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

$175 USD

Highest Price

$1,507 USD

Average Price

$638 USD

Market Intelligence

Retailers Selling

Cross Retailer %

29.7%

Price Spread

32.0%

30-Day Price Trend

-3.3%

30-Day Supply Change

-10.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,650/ct

10th Percentile

$1,060

Median

$1,650

90th Percentile

$2,602

Score Distribution

35 diamonds scored across 4 quality tiers

Excellent

7 (20.0%)

Very Good

8 (22.9%)

Good

4 (11.4%)

Average

16 (45.7%)

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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