How much does a 1.00 to 1.49ct I I1 natural oval diamond cost?

As of November 2026, 1.00 to 1.49ct I I1 natural oval diamonds typically cost $2,155 NZD to $7,015 NZD, with a median price of $4,053 NZD. There are currently 141 diamonds matching this specification available across retailers.

Where can I find the best price on a I I1 oval diamond?

About 28% of these diamonds are available at multiple retailers, with an average price spread of 53%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I I1 Natural Oval

Quick answer

As of November 2026, there are 141 natural oval diamonds with I colour and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,155 NZD to $7,015 NZD, with a median of $4,053 NZD. At least 28 retailers stock this exact specification, and 28% of the stones appear at more than one of them, with an average price spread of 53%. Half of all listings fall between $2,435 NZD and $4,228 NZD per carat. The same specification in lab grown form lists at a median of about $848 NZD per carat. Over the last 30 days the median price moved -4.2% and the number of listings moved +8.0%.

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: November 2026

Available

141

Lowest Price

$1,085 NZD

Highest Price

$11,594 NZD

Average Price

$4,370 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

28.1%

Price Spread

52.8%

30-Day Price Trend

-4.2%

30-Day Supply Change

+8.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,915/ct

10th Percentile

$1,044

Median

$1,915

90th Percentile

$3,136

Score Distribution

386 diamonds scored across 4 quality tiers

Excellent

16 (4.1%)

Very Good

66 (17.1%)

Good

60 (15.5%)

Average

244 (63.2%)

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Consider Instead

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

J I1J colour is visually identical to I to the naked eye

Save 16%

Lab-Grown I I1Same specifications, lab-grown origin

Save 75%

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