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

As of November 2026, 1.50 to 1.99ct J SI1 natural asscher diamonds typically cost $5,543 NZD to $13,801 NZD, with a median price of $8,744 NZD. There are currently 55 diamonds matching this specification available across retailers.

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

About 28% of these diamonds are available at multiple retailers, with an average price spread of 46%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct J SI1 Natural Asscher

Quick answer

As of November 2026, there are 55 natural asscher diamonds with J colour and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $5,543 NZD to $13,801 NZD, with a median of $8,744 NZD. At least 50 retailers stock this exact specification, and 28% of the stones appear at more than one of them, with an average price spread of 46%. Half of all listings fall between $3,909 NZD and $6,198 NZD per carat. Over the last 30 days the median price moved -0.5% and the number of listings moved +3.9%.

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: November 2026

Available

Lowest Price

$4,196 NZD

Highest Price

$23,066 NZD

Average Price

$9,219 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

28.2%

Price Spread

45.6%

30-Day Price Trend

-0.5%

30-Day Supply Change

+3.9%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,832/ct

10th Percentile

$1,732

Median

$2,832

90th Percentile

$4,332

Score Distribution

219 diamonds scored across 4 quality tiers

Excellent

18 (8.2%)

Very Good

29 (13.2%)

Good

26 (11.9%)

Average

146 (66.7%)

Find Your Diamond

Search 55 J SI1 asscher diamonds and compare prices.

Search Diamonds

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