How much does a 5.00ct+ G SI2 natural emerald diamond cost?

As of September 2026, 5.00ct+ G SI2 natural emerald diamonds typically cost $121,820 AUD to $185,659 AUD, with a median price of $151,948 AUD. There are currently 4 diamonds matching this specification available across retailers.

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

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5.00ct+ G SI2 Natural Emerald

Quick answer

As of September 2026, there are 4 natural emerald diamonds with G colour and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $121,820 AUD to $185,659 AUD, with a median of $151,948 AUD. At least 8 retailers stock this exact specification. Half of all listings fall between $30,570 AUD and $42,670 AUD per carat. The same specification in lab grown form lists at a median of about $352 AUD per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Emerald natural stones in the index: 2,166 USD per carat, -6.6% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$117,671 AUD

Highest Price

$230,585 AUD

Average Price

$153,228 AUD

Market Intelligence

Retailers Selling

Price Spread

31.1%

Price Range

Price per carat distribution across retailers

$25,301/ct

10th Percentile

$19,264

Median

$25,301

90th Percentile

$29,590

Score Distribution

4 diamonds scored across 3 quality tiers

Excellent

2 (50.0%)

Good

1 (25.0%)

Average

1 (25.0%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

H SI2H colour is visually identical to G to the naked eye

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Lab-Grown G SI2Same specifications, lab-grown origin

Save 99%

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