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

As of October 2026, 1.00 to 1.49ct D I1 natural oval diamonds typically cost $2,579 AUD to $8,373 AUD, with a median price of $4,578 AUD. There are currently 90 diamonds matching this specification available across retailers.

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

About 29% 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.

1.00 to 1.49ct D I1 Natural Oval

Quick answer

As of October 2026, there are 90 natural oval diamonds with D colour and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,579 AUD to $8,373 AUD, with a median of $4,578 AUD. At least 28 retailers stock this exact specification, and 29% of the stones appear at more than one of them, with an average price spread of 46%. Half of all listings fall between $2,712 AUD and $4,301 AUD per carat. The same specification in lab grown form lists at a median of about $523 AUD per carat. Over the last 30 days the median price moved -3.0% and the number of listings moved +5.7%.

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

Lowest Price

$1,405 AUD

Highest Price

$12,855 AUD

Average Price

$5,064 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

29.5%

Price Spread

45.5%

30-Day Price Trend

-3.0%

30-Day Supply Change

+5.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,451/ct

10th Percentile

$1,510

Median

$2,451

90th Percentile

$4,141

Score Distribution

321 diamonds scored across 4 quality tiers

Excellent

41 (12.8%)

Very Good

45 (14.0%)

Good

35 (10.9%)

Average

200 (62.3%)

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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