How much does a 0.50 to 0.74ct F SI1 natural asscher diamond cost?

As of October 2026, 0.50 to 0.74ct F SI1 natural asscher diamonds typically cost £344 GBP to £871 GBP, with a median price of £532 GBP. There are currently 93 diamonds matching this specification available across retailers.

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

About 26% of these diamonds are available at multiple retailers, with an average price spread of 55%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct F SI1 Natural Asscher

Quick answer

As of October 2026, there are 93 natural asscher diamonds with F colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run £344 GBP to £871 GBP, with a median of £532 GBP. At least 52 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 55%. Half of all listings fall between £752 GBP and £1,255 GBP per carat. Over the last 30 days the median price moved +0.5% and the number of listings moved -3.6%.

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

£257 GBP

Highest Price

£1,840 GBP

Average Price

£585 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

25.8%

Price Spread

55.1%

30-Day Price Trend

+0.5%

30-Day Supply Change

-3.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,216/ct

10th Percentile

$833

Median

$1,216

90th Percentile

$2,214

Score Distribution

274 diamonds scored across 4 quality tiers

Excellent

44 (16.1%)

Very Good

88 (32.1%)

Good

62 (22.6%)

Average

80 (29.2%)

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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