How much does a 5.00ct+ I VS1 natural asscher diamond cost?

As of October 2026, 5.00ct+ I VS1 natural asscher diamonds typically cost $67,613 AUD to $182,036 AUD, with a median price of $115,980 AUD. There are currently 14 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS1 asscher diamond?

About 44% of these diamonds are available at multiple retailers, with an average price spread of 18%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ I VS1 Natural Asscher

Quick answer

As of October 2026, there are 14 natural asscher diamonds with I colour and VS1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $67,613 AUD to $182,036 AUD, with a median of $115,980 AUD. At least 30 retailers stock this exact specification, and 44% of the stones appear at more than one of them, with an average price spread of 18%. Half of all listings fall between $18,142 AUD and $21,752 AUD per carat. The same specification in lab grown form lists at a median of about $1,022 AUD per carat. Over the last 30 days the median price moved -0.6% and the number of listings moved +12.2%.

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

$59,040 AUD

Highest Price

$475,205 AUD

Average Price

$137,419 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

44.2%

Price Spread

18.4%

30-Day Price Trend

-0.6%

30-Day Supply Change

+12.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$13,771/ct

10th Percentile

$10,585

Median

$13,771

90th Percentile

$17,128

Score Distribution

30 diamonds scored across 4 quality tiers

Excellent

7 (23.3%)

Very Good

10 (33.3%)

Good

5 (16.7%)

Average

8 (26.7%)

Find Your Diamond

Search 14 I VS1 asscher diamonds and compare prices.

Search Diamonds

Consider Instead

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

Lab-Grown I VS1Same specifications, lab-grown origin

Save 95%

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