How much does a 0.50 to 0.74ct I VS1 natural oval diamond cost?

As of October 2026, 0.50 to 0.74ct I VS1 natural oval diamonds typically cost $847 NZD to $2,476 NZD, with a median price of $1,372 NZD. There are currently 1,006 diamonds matching this specification available across retailers.

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

About 33% of these diamonds are available at multiple retailers, with an average price spread of 50%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct I VS1 Natural Oval

Quick answer

As of October 2026, there are 1,006 natural oval diamonds with I colour and VS1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $847 NZD to $2,476 NZD, with a median of $1,372 NZD. At least 63 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 50%. Half of all listings fall between $2,283 NZD and $3,693 NZD per carat. The same specification in lab grown form lists at a median of about $1,955 NZD per carat. Over the last 30 days the median price moved -2.4% and the number of listings moved +1.4%.

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. Oval natural stones in the index: 2,655 USD per carat, +10.2% 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

1,006

Lowest Price

$557 NZD

Highest Price

$5,640 NZD

Average Price

$1,573 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

32.9%

Price Spread

50.5%

30-Day Price Trend

-2.4%

30-Day Supply Change

+1.4%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,568/ct

10th Percentile

$1,071

Median

$1,568

90th Percentile

$2,961

Score Distribution

2.4K diamonds scored across 4 quality tiers

Excellent

487 (20.2%)

Very Good

871 (36.1%)

Good

590 (24.5%)

Average

465 (19.3%)

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Consider Instead

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

J VS1J colour is visually identical to I to the naked eye

Save 23%

Lab-Grown I VS1Same specifications, lab-grown origin

Save 30%

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