How much does a 0.50 to 0.74ct J SI1 natural oval diamond cost?

As of November 2026, 0.50 to 0.74ct J SI1 natural oval diamonds typically cost €403 EUR to €1,246 EUR, with a median price of €659 EUR. There are currently 220 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 45%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct J SI1 Natural Oval

Quick answer

As of November 2026, there are 220 natural oval diamonds with J color and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run €403 EUR to €1,246 EUR, with a median of €659 EUR. At least 56 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 45%. Half of all listings fall between €872 EUR and €1,344 EUR per carat. The same specification in lab grown form lists at a median of about €712 EUR per carat. Over the last 30 days the median price moved -1.0% and the number of listings moved +7.9%.

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

220

Lowest Price

€242 EUR

Highest Price

€2,184 EUR

Average Price

€743 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

35.8%

Price Spread

45.3%

30-Day Price Trend

-1.0%

30-Day Supply Change

+7.9%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,164/ct

10th Percentile

$829

Median

$1,164

90th Percentile

$2,145

Score Distribution

575 diamonds scored across 4 quality tiers

Excellent

89 (15.5%)

Very Good

106 (18.4%)

Good

109 (19.0%)

Average

271 (47.1%)

Find Your Diamond

Search 220 J SI1 oval diamonds and compare prices.

Search Diamonds

Consider Instead

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

J SI2SI2 inclusions are not visible without magnification

Save 4%

Lab-Grown J SI1Same specifications, lab-grown origin

Save 32%

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