How much does a 1.50 to 1.99ct D IF lab grown cushion diamond cost?

As of October 2026, 1.50 to 1.99ct D IF lab grown cushion diamonds typically cost HK$4,009 HKD to HK$30,635 HKD, with a median price of HK$7,265 HKD. There are currently 402 diamonds matching this specification available across retailers.

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

About 33% of these diamonds are available at multiple retailers, with an average price spread of 125%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct D IF Lab Grown Cushion

Quick answer

As of October 2026, there are 402 lab grown cushion diamonds with D colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run HK$4,009 HKD to HK$30,635 HKD, with a median of HK$7,265 HKD. At least 53 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 125%. Half of all listings fall between HK$4,119 HKD and HK$13,148 HKD per carat. The same specification in natural form lists at a median of about HK$67,572 HKD per carat. Over the last 30 days the median price moved -10.5% and the number of listings moved +31.6%.

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. 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

402

Lowest Price

HK$2,777 HKD

Highest Price

HK$79,975 HKD

Average Price

HK$12,541 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

32.6%

Price Spread

124.7%

30-Day Price Trend

-10.5%

30-Day Supply Change

+31.6%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$923/ct

10th Percentile

$412

Median

$923

90th Percentile

$2,234

Score Distribution

1.3K diamonds scored across 5 quality tiers

Exceptional

16 (1.2%)

Excellent

357 (27.5%)

Very Good

542 (41.8%)

Good

163 (12.6%)

Average

218 (16.8%)

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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