How much does a 0.20 to 0.49ct G SI1 natural emerald diamond cost?

As of October 2026, 0.20 to 0.49ct G SI1 natural emerald diamonds typically cost $263 USD to $754 USD, with a median price of $415 USD. There are currently 480 diamonds matching this specification available across retailers.

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

About 33% of these diamonds are available at multiple retailers, with an average price spread of 51%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct G SI1 Natural Emerald

Quick answer

As of October 2026, there are 480 natural emerald diamonds with G color and SI1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $263 USD to $754 USD, with a median of $415 USD. At least 19 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 51%. Half of all listings fall between $1,125 USD and $1,851 USD per carat. The same specification in lab grown form lists at a median of about $677 USD per carat. Over the last 30 days the median price moved -4.0% and the number of listings moved +12.0%.

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 natural stones in the index: 2,278 USD per carat, +6.2% 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

480

Lowest Price

$142 USD

Highest Price

$1,381 USD

Average Price

$464 USD

Market Intelligence

Retailers Selling

Cross Retailer %

32.9%

Price Spread

51.0%

30-Day Price Trend

-4.0%

30-Day Supply Change

+12.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,425/ct

10th Percentile

$1,020

Median

$1,425

90th Percentile

$2,143

Score Distribution

1.2K diamonds scored across 4 quality tiers

Excellent

113 (9.5%)

Very Good

419 (35.2%)

Good

252 (21.2%)

Average

406 (34.1%)

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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