How much does a 0.50 to 0.74ct D SI2 lab grown emerald diamond cost?

As of October 2026, 0.50 to 0.74ct D SI2 lab grown emerald diamonds typically cost $228 NZD to $1,680 NZD, with a median price of $819 NZD. There are currently 7 diamonds matching this specification available across retailers.

Where can I find the best price on a D SI2 emerald diamond?

About 33% of these diamonds are available at multiple retailers, with an average price spread of 76%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct D SI2 Lab Grown Emerald

Quick answer

As of October 2026, there are 7 lab grown emerald diamonds with D colour and SI2 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $228 NZD to $1,680 NZD, with a median of $819 NZD. At least 27 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 76%. Half of all listings fall between $608 NZD and $1,457 NZD per carat. The same specification in natural form lists at a median of about $2,248 NZD per carat. Over the last 30 days the median price moved -2.6% and the number of listings moved -0.5%.

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. 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

$178 NZD

Highest Price

$2,310 NZD

Average Price

$842 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

32.6%

Price Spread

76.3%

30-Day Price Trend

-2.6%

30-Day Supply Change

-0.5%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$624/ct

10th Percentile

$210

Median

$624

90th Percentile

$1,238

Score Distribution

14 diamonds scored across 4 quality tiers

Excellent

3 (21.4%)

Very Good

2 (14.3%)

Good

2 (14.3%)

Average

7 (50.0%)

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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