How much does a 3.00 to 4.99ct J SI1 natural asscher diamond cost?

As of October 2026, 3.00 to 4.99ct J SI1 natural asscher diamonds typically cost $26,633 NZD to $105,559 NZD, with a median price of $49,954 NZD. There are currently 14 diamonds matching this specification available across retailers.

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

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

3.00 to 4.99ct J SI1 Natural Asscher

Quick answer

As of October 2026, there are 14 natural asscher diamonds with J colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $26,633 NZD to $105,559 NZD, with a median of $49,954 NZD. At least 18 retailers stock this exact specification, and 55% of the stones appear at more than one of them, with an average price spread of 26%. Half of all listings fall between $9,345 NZD and $11,989 NZD per carat. The same specification in lab grown form lists at a median of about $2,758 NZD per carat. Over the last 30 days the median price moved -14.6% and the number of listings moved +20.4%.

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

$24,654 NZD

Highest Price

$160,035 NZD

Average Price

$58,409 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

54.5%

Price Spread

26.3%

30-Day Price Trend

-14.6%

30-Day Supply Change

+20.4%

Volatility (30d)

0.06

Price Range

Price per carat distribution across retailers

$5,645/ct

10th Percentile

$4,653

Median

$5,645

90th Percentile

$7,585

Score Distribution

19 diamonds scored across 4 quality tiers

Excellent

2 (10.5%)

Very Good

4 (21.1%)

Good

10 (52.6%)

Average

3 (15.8%)

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Consider Instead

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

Lab-Grown J 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