How much does a 0.75 - 0.99ct I SI1 lab grown cushion diamond cost?

As of April 2026, 0.75 - 0.99ct I SI1 lab grown cushion diamonds are available from $265 SGD to $25,615 SGD, with an average price of $3,401 SGD. There are currently 301 diamonds matching this specification available across retailers.

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

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0.75 - 0.99ct I SI1 Lab Grown Cushion

As of April 2026, there are 301 lab grown cushion diamonds with I color and SI1 clarity in the 0.75 - 0.99ct range available across retailers worldwide. Prices range from $265 SGD to $25,615 SGD, with an average of $3,401 SGD.

Last updated: April 2026

Available

301

Lowest Price

$265 SGD

Highest Price

$25,615 SGD

Average Price

$3,401 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

N/A

Price Spread

124.2%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$1,589/ct

10th Percentile

$572

Median

$1,589

90th Percentile

$3,826

Score Distribution

301 diamonds scored across 4 quality tiers

Excellent

31 (10.3%)

Very Good

87 (28.9%)

Good

67 (22.3%)

Average

116 (38.5%)

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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