How much does a 3.00 to 4.99ct G SI1 lab grown asscher diamond cost?

As of November 2026, 3.00 to 4.99ct G SI1 lab grown asscher diamonds typically cost €504 EUR to €1,863 EUR, with a median price of €1,177 EUR. There are currently 28 diamonds matching this specification available across retailers.

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

About 48% of these diamonds are available at multiple retailers, with an average price spread of 98%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct G SI1 Lab Grown Asscher

Quick answer

As of November 2026, there are 28 lab grown asscher diamonds with G color and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €504 EUR to €1,863 EUR, with a median of €1,177 EUR. At least 27 retailers stock this exact specification, and 48% of the stones appear at more than one of them, with an average price spread of 98%. Half of all listings fall between €198 EUR and €526 EUR per carat. The same specification in natural form lists at a median of about €9,873 EUR per carat. Over the last 30 days the median price moved +1.7% and the number of listings moved +32.3%.

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 lab grown stones in the index: 470 USD per carat, -4.3% 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: November 2026

Available

Lowest Price

€240 EUR

Highest Price

€4,028 EUR

Average Price

€1,223 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

48.4%

Price Spread

98.3%

30-Day Price Trend

+1.7%

30-Day Supply Change

+32.3%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$373/ct

10th Percentile

$161

Median

$373

90th Percentile

$807

Score Distribution

33 diamonds scored across 4 quality tiers

Excellent

9 (27.3%)

Very Good

8 (24.2%)

Good

15 (45.5%)

Average

1 (3.0%)

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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