How much does a 1.50 to 1.99ct G SI1 natural asscher diamond cost?

As of October 2026, 1.50 to 1.99ct G SI1 natural asscher diamonds typically cost £3,507 GBP to £9,871 GBP, with a median price of £6,335 GBP. There are currently 79 diamonds matching this specification available across retailers.

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

About 23% of these diamonds are available at multiple retailers, with an average price spread of 56%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G SI1 Natural Asscher

Quick answer

As of October 2026, there are 79 natural asscher diamonds with G colour and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £3,507 GBP to £9,871 GBP, with a median of £6,335 GBP. At least 55 retailers stock this exact specification, and 23% of the stones appear at more than one of them, with an average price spread of 56%. Half of all listings fall between £2,773 GBP and £4,868 GBP per carat. The same specification in lab grown form lists at a median of about £326 GBP per carat. Over the last 30 days the median price moved +0.0% and the number of listings moved +3.3%.

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

£2,209 GBP

Highest Price

£20,757 GBP

Average Price

£6,722 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

22.9%

Price Spread

56.1%

30-Day Price Trend

+0.0%

30-Day Supply Change

+3.3%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$5,005/ct

10th Percentile

$2,985

Median

$5,005

90th Percentile

$7,875

Score Distribution

293 diamonds scored across 4 quality tiers

Excellent

29 (9.9%)

Very Good

37 (12.6%)

Good

47 (16.0%)

Average

180 (61.4%)

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Consider Instead

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

H SI1H colour is visually identical to G to the naked eye

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Lab-Grown G SI1Same specifications, lab-grown origin

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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