How much does a 1.50 to 1.99ct H SI1 lab grown emerald diamond cost?

As of October 2026, 1.50 to 1.99ct H SI1 lab grown emerald diamonds typically cost $792 NZD to $8,474 NZD, with a median price of $1,404 NZD. There are currently 36 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI1 emerald diamond?

About 20% of these diamonds are available at multiple retailers, with an average price spread of 101%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct H SI1 Lab Grown Emerald

Quick answer

As of October 2026, there are 36 lab grown emerald diamonds with H colour and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $792 NZD to $8,474 NZD, with a median of $1,404 NZD. At least 27 retailers stock this exact specification, and 20% of the stones appear at more than one of them, with an average price spread of 101%. Half of all listings fall between $652 NZD and $1,967 NZD per carat. The same specification in natural form lists at a median of about $7,613 NZD per carat. Over the last 30 days the median price moved -11.8% and the number of listings moved +10.2%.

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. Emerald lab grown stones in the index: 451 USD per carat, -8.3% 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

$303 NZD

Highest Price

$10,954 NZD

Average Price

$2,451 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

20.0%

Price Spread

101.0%

30-Day Price Trend

-11.8%

30-Day Supply Change

+10.2%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$730/ct

10th Percentile

$198

Median

$730

90th Percentile

$1,904

Score Distribution

144 diamonds scored across 4 quality tiers

Excellent

14 (9.7%)

Very Good

24 (16.7%)

Good

68 (47.2%)

Average

38 (26.4%)

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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