How much does a 0.50 to 0.74ct J VS1 lab grown cushion diamond cost?

As of October 2026, 0.50 to 0.74ct J VS1 lab grown cushion diamonds typically cost $216 AUD to $414 AUD, with a median price of $310 AUD. There are currently 5 diamonds matching this specification available across retailers.

Where can I find the best price on a J VS1 cushion diamond?

About 67% of these diamonds are available at multiple retailers, with an average price spread of 48%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct J VS1 Lab Grown Cushion

Quick answer

As of October 2026, there are 5 lab grown cushion diamonds with J colour and VS1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $216 AUD to $414 AUD, with a median of $310 AUD. At least 15 retailers stock this exact specification, and 67% of the stones appear at more than one of them, with an average price spread of 48%. Half of all listings fall between $635 AUD and $987 AUD per carat. The same specification in natural form lists at a median of about $1,522 AUD per carat.

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

Lowest Price

$208 AUD

Highest Price

$1,298 AUD

Average Price

$321 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

66.7%

Price Spread

47.8%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$518/ct

10th Percentile

$348

Median

$518

90th Percentile

$768

Score Distribution

9 diamonds scored across 3 quality tiers

Excellent

6 (66.7%)

Very Good

1 (11.1%)

Good

2 (22.2%)

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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