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

As of September 2026, 1.00 to 1.49ct D I1 natural oval diamonds typically cost $3,135 NZD to $9,378 NZD, with a median price of $5,352 NZD. There are currently 318 diamonds matching this specification available across retailers.

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

About 39% of these diamonds are available at multiple retailers, with an average price spread of 34%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct D I1 Natural Oval

Quick answer

As of September 2026, there are 318 natural oval diamonds with D colour and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $3,135 NZD to $9,378 NZD, with a median of $5,352 NZD. At least 23 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 34%. Half of all listings fall between $3,444 NZD and $4,921 NZD per carat. The same specification in lab grown form lists at a median of about $2,107 NZD per carat. Over the last 30 days the median price moved -3.5% and the number of listings moved -1.1%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Oval natural stones in the index: 2,380 USD per carat, -9.6% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

318

Lowest Price

$1,804 NZD

Highest Price

$15,684 NZD

Average Price

$5,786 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

39.0%

Price Spread

34.1%

30-Day Price Trend

-3.5%

30-Day Supply Change

-1.1%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,490/ct

10th Percentile

$1,636

Median

$2,490

90th Percentile

$3,442

Score Distribution

318 diamonds scored across 4 quality tiers

Excellent

35 (11.0%)

Very Good

60 (18.9%)

Good

55 (17.3%)

Average

168 (52.8%)

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Consider Instead

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

Lab-Grown D I1Same 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