How much does a 0.50 to 0.74ct I SI2 natural oval diamond cost?

As of November 2026, 0.50 to 0.74ct I SI2 natural oval diamonds typically cost €363 EUR to €1,024 EUR, with a median price of €588 EUR. There are currently 261 diamonds matching this specification available across retailers.

Where can I find the best price on a I SI2 oval diamond?

About 27% of these diamonds are available at multiple retailers, with an average price spread of 47%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct I SI2 Natural Oval

Quick answer

As of November 2026, there are 261 natural oval diamonds with I color and SI2 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run €363 EUR to €1,024 EUR, with a median of €588 EUR. At least 53 retailers stock this exact specification, and 27% of the stones appear at more than one of them, with an average price spread of 47%. Half of all listings fall between €900 EUR and €1,413 EUR per carat. The same specification in lab grown form lists at a median of about €613 EUR per carat. Over the last 30 days the median price moved -1.3% and the number of listings moved +6.7%.

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: November 2026

Available

261

Lowest Price

€210 EUR

Highest Price

€2,313 EUR

Average Price

€666 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

27.1%

Price Spread

46.9%

30-Day Price Trend

-1.3%

30-Day Supply Change

+6.7%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,220/ct

10th Percentile

$856

Median

$1,220

90th Percentile

$2,255

Score Distribution

676 diamonds scored across 4 quality tiers

Excellent

70 (10.4%)

Very Good

213 (31.5%)

Good

206 (30.5%)

Average

187 (27.7%)

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Consider Instead

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

J SI2J colour is visually identical to I to the naked eye

Save 8%

Lab-Grown I SI2Same specifications, lab-grown origin

Save 44%

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