How much does a 0.50 - 0.74ct I SI1 natural oval diamond cost?

As of April 2026, 0.50 - 0.74ct I SI1 natural oval diamonds are available from $237 AUD to $1,522,062 AUD, with an average price of $12,018 AUD. There are currently 8,025 diamonds matching this specification available across retailers.

Where can I find the best price on a I SI1 oval diamond?

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0.50 - 0.74ct I SI1 Natural Oval

As of April 2026, there are 8,025 natural oval diamonds with I color and SI1 clarity in the 0.50 - 0.74ct range available across retailers worldwide. Prices range from $237 AUD to $1,522,062 AUD, with an average of $12,018 AUD.

Last updated: April 2026

Available

8,025

Lowest Price

$237 AUD

Highest Price

$1,522,062 AUD

Average Price

$12,018 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

N/A

Price Spread

34.6%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$1,422/ct

10th Percentile

$1,041

Median

$1,422

90th Percentile

$2,219

Score Distribution

8.0K diamonds scored across 4 quality tiers

Excellent

1,270 (15.8%)

Very Good

2,360 (29.4%)

Good

2,736 (34.1%)

Average

1,659 (20.7%)

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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