How much does a 1.50 to 1.99ct K VS1 lab grown round diamond cost?

As of November 6, 2026, 1.50 to 1.99ct K VS1 lab grown round diamonds typically cost $3,987 NZD to $6,667 NZD, with a median price of $4,896 NZD. There are currently 118 diamonds matching this specification available across retailers.

Where can I find the best price on a K VS1 round diamond?

About 52% of these diamonds are available at multiple retailers, with an average price spread of 44%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct K VS1 Lab Grown Round

Quick answer

As of November 6, 2026, there are 118 lab grown round diamonds with K colour and VS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $3,987 NZD to $6,667 NZD, with a median of $4,896 NZD. Half of all listings fall between $2,553 NZD and $3,679 NZD per carat. The same specification in natural form lists at a median of about $5,727 NZD per carat. Over the last 30 days the median price moved -0.4% and the number of listings moved +1.6%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Round lab grown stones in the index: 425 USD per carat, +1.7% month on month. See the full index release

Figures come from current listings across more than 125 retailers. The index is a monthly release.

Last updated: November 6, 2026

Available

118

Lowest Price

$1,597 NZD

Highest Price

$14,800 NZD

Average Price

$5,301 NZD

Market Intelligence

Cross Retailer %

51.7%

Price Spread

44.0%

30-Day Price Trend

-0.4%

30-Day Supply Change

+1.6%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,438/ct

10th Percentile

$1,434

Median

$1,438

90th Percentile

$2,071

Score Distribution

118 diamonds scored across 4 quality tiers

Excellent

1 (0.8%)

Very Good

59 (50.0%)

Good

1 (0.8%)

Average

57 (48.3%)

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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