How much does a 1.00 to 1.49ct D IF lab grown cushion diamond cost?

As of October 2026, 1.00 to 1.49ct D IF lab grown cushion diamonds typically cost $390 SGD to $3,044 SGD, with a median price of $753 SGD. There are currently 465 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 103%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct D IF Lab Grown Cushion

Quick answer

As of October 2026, there are 465 lab grown cushion diamonds with D colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $390 SGD to $3,044 SGD, with a median of $753 SGD. At least 51 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 103%. Half of all listings fall between $679 SGD and $1,779 SGD per carat. The same specification in natural form lists at a median of about $9,224 SGD per carat. Over the last 30 days the median price moved -9.3% and the number of listings moved +39.7%.

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. Cushion lab grown stones in the index: 516 USD per carat, +6.9% 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

465

Lowest Price

$297 SGD

Highest Price

$7,774 SGD

Average Price

$1,280 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

37.6%

Price Spread

103.5%

30-Day Price Trend

-9.3%

30-Day Supply Change

+39.7%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$830/ct

10th Percentile

$414

Median

$830

90th Percentile

$1,949

Score Distribution

1.1K diamonds scored across 5 quality tiers

Exceptional

16 (1.4%)

Excellent

322 (28.3%)

Very Good

380 (33.4%)

Good

252 (22.1%)

Average

168 (14.8%)

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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