How much does a 5.00ct+ G SI1 lab grown emerald diamond cost?

As of October 2026, 5.00ct+ G SI1 lab grown emerald diamonds typically cost $934 AUD to $8,630 AUD, with a median price of $2,762 AUD. There are currently 47 diamonds matching this specification available across retailers.

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

About 56% of these diamonds are available at multiple retailers, with an average price spread of 118%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ G SI1 Lab Grown Emerald

Quick answer

As of October 2026, there are 47 lab grown emerald diamonds with G colour and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $934 AUD to $8,630 AUD, with a median of $2,762 AUD. At least 23 retailers stock this exact specification, and 56% of the stones appear at more than one of them, with an average price spread of 118%. Half of all listings fall between $260 AUD and $687 AUD per carat. The same specification in natural form lists at a median of about $35,115 AUD per carat. Over the last 30 days the median price moved -6.1% and the number of listings moved +63.7%.

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

$686 AUD

Highest Price

$20,177 AUD

Average Price

$4,040 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

55.6%

Price Spread

118.1%

30-Day Price Trend

-6.1%

30-Day Supply Change

+63.7%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$254/ct

10th Percentile

$135

Median

$254

90th Percentile

$703

Score Distribution

95 diamonds scored across 4 quality tiers

Excellent

27 (28.4%)

Very Good

16 (16.8%)

Good

21 (22.1%)

Average

31 (32.6%)

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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