How much does a 5.00ct+ G VS1 lab grown cushion diamond cost?

As of October 2026, 5.00ct+ G VS1 lab grown cushion diamonds typically cost $1,499 NZD to $14,602 NZD, with a median price of $3,450 NZD. There are currently 860 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 92%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ G VS1 Lab Grown Cushion

Quick answer

As of October 2026, there are 860 lab grown cushion diamonds with G colour and VS1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $1,499 NZD to $14,602 NZD, with a median of $3,450 NZD. At least 45 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 92%. Half of all listings fall between $573 NZD and $1,369 NZD per carat. The same specification in natural form lists at a median of about $45,887 NZD per carat. Over the last 30 days the median price moved -8.4% and the number of listings moved +25.5%.

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

860

Lowest Price

$1,183 NZD

Highest Price

$173,438 NZD

Average Price

$6,647 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

42.0%

Price Spread

91.9%

30-Day Price Trend

-8.4%

30-Day Supply Change

+25.5%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$488/ct

10th Percentile

$253

Median

$488

90th Percentile

$1,152

Score Distribution

1.5K diamonds scored across 4 quality tiers

Excellent

672 (44.2%)

Very Good

225 (14.8%)

Good

290 (19.1%)

Average

335 (22.0%)

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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