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

About 50% of these diamonds are available at multiple retailers, with an average price spread of 133%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct J SI1 Lab Grown Radiant

Last updated: October 2026

Available

Market Intelligence

Retailers Selling

Cross Retailer %

50.0%

Price Spread

133.2%

Price Range

Price per carat distribution across retailers

$483/ct

10th Percentile

$404

Median

$483

90th Percentile

$1,554

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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