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

As of October 2026, 0.20 to 0.49ct F SI1 natural asscher diamonds typically cost $406 AUD to $1,038 AUD, with a median price of $834 AUD. There are currently 10 diamonds matching this specification available across retailers.

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

About 35% 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 F SI1 Natural Asscher

Quick answer

As of October 2026, there are 10 natural asscher diamonds with F colour and SI1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $406 AUD to $1,038 AUD, with a median of $834 AUD. At least 34 retailers stock this exact specification, and 35% of the stones appear at more than one of them, with an average price spread of 31%. Half of all listings fall between $1,803 AUD and $2,461 AUD per carat. Over the last 30 days the median price moved -3.0% and the number of listings moved +1.7%.

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

$307 AUD

Highest Price

$1,832 AUD

Average Price

$792 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

35.0%

Price Spread

31.0%

30-Day Price Trend

-3.0%

30-Day Supply Change

+1.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,491/ct

10th Percentile

$947

Median

$1,491

90th Percentile

$2,174

Score Distribution

26 diamonds scored across 4 quality tiers

Excellent

7 (26.9%)

Very Good

3 (11.5%)

Good

1 (3.8%)

Average

15 (57.7%)

Find Your Diamond

Search 10 F SI1 asscher diamonds and compare prices.

Search Diamonds

Consider Instead

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

F SI2SI2 inclusions are not visible without magnification

Save 5%

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