How much does a 1.00 - 1.49ct D I1 lab grown princess diamond cost?

As of April 2026, 1.00 - 1.49ct D I1 lab grown princess diamonds are available from ￥139,030 JPY to ￥603,627 JPY, with an average price of ￥288,639 JPY. There are currently 5 diamonds matching this specification available across retailers.

Where can I find the best price on a D I1 princess diamond?

About 17% of these diamonds are available at multiple retailers, with an average price spread of 59%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 - 1.49ct D I1 Lab Grown Princess

As of April 2026, there are 5 lab grown princess diamonds with D color and I1 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from ￥139,030 JPY to ￥603,627 JPY, with an average of ￥288,639 JPY.

Last updated: April 2026

Available

Lowest Price

￥139,030 JPY

Highest Price

￥603,627 JPY

Average Price

￥288,639 JPY

Market Intelligence

Retailers Selling

Cross Retailer %

16.7%

Price Spread

59.2%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$1,696/ct

10th Percentile

$1,028

Median

$1,696

90th Percentile

$2,957

Score Distribution

5 diamonds scored across 2 quality tiers

Good

2 (40.0%)

Average

3 (60.0%)

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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