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 HK$2,074 HKD to HK$5,862 HKD, with a median price of HK$3,266 HKD. There are currently 402 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 49%. 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 402 natural emerald diamonds with G colour and SI1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run HK$2,074 HKD to HK$5,862 HKD, with a median of HK$3,266 HKD. 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 49%. Half of all listings fall between HK$8,872 HKD and HK$14,337 HKD per carat. The same specification in lab grown form lists at a median of about HK$5,288 HKD per carat. Over the last 30 days the median price moved -3.3% and the number of listings moved +5.8%.

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

402

Lowest Price

HK$1,111 HKD

Highest Price

HK$10,836 HKD

Average Price

HK$3,629 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

32.9%

Price Spread

49.0%

30-Day Price Trend

-3.3%

30-Day Supply Change

+5.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,422/ct

10th Percentile

$1,021

Median

$1,422

90th Percentile

$2,108

Score Distribution

979 diamonds scored across 4 quality tiers

Excellent

100 (10.2%)

Very Good

287 (29.3%)

Good

170 (17.4%)

Average

422 (43.1%)

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Consider Instead

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

H SI1H colour is visually identical to G to the naked eye

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G SI2SI2 inclusions are not visible without magnification

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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