How much does a 0.50 to 0.74ct J IF natural radiant diamond cost?

As of October 2026, 0.50 to 0.74ct J IF natural radiant diamonds typically cost £376 GBP to £766 GBP, with a median price of £493 GBP. There are currently 36 diamonds matching this specification available across retailers.

Where can I find the best price on a J IF radiant diamond?

About 38% of these diamonds are available at multiple retailers, with an average price spread of 41%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct J IF Natural Radiant

Quick answer

As of October 2026, there are 36 natural radiant diamonds with J colour and IF clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run £376 GBP to £766 GBP, with a median of £493 GBP. At least 37 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 41%. Half of all listings fall between £812 GBP and £1,210 GBP per carat. Over the last 30 days the median price moved -4.5% and the number of listings moved +13.6%.

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. Radiant natural stones in the index: 3,091 USD per carat, +13.2% 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

£254 GBP

Highest Price

£1,712 GBP

Average Price

£535 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

37.7%

Price Spread

41.2%

30-Day Price Trend

-4.5%

30-Day Supply Change

+13.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,281/ct

10th Percentile

$947

Median

$1,281

90th Percentile

$2,091

Score Distribution

111 diamonds scored across 4 quality tiers

Excellent

27 (24.3%)

Very Good

35 (31.5%)

Good

36 (32.4%)

Average

13 (11.7%)

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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