How much does a 0.50 to 0.74ct I SI2 natural emerald diamond cost?

As of October 2026, 0.50 to 0.74ct I SI2 natural emerald diamonds typically cost HK$2,785 HKD to HK$6,331 HKD, with a median price of HK$4,333 HKD. There are currently 145 diamonds matching this specification available across retailers.

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

About 28% of these diamonds are available at multiple retailers, with an average price spread of 33%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct I SI2 Natural Emerald

Quick answer

As of October 2026, there are 145 natural emerald diamonds with I colour and SI2 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run HK$2,785 HKD to HK$6,331 HKD, with a median of HK$4,333 HKD. At least 48 retailers stock this exact specification, and 28% of the stones appear at more than one of them, with an average price spread of 33%. Half of all listings fall between HK$6,497 HKD and HK$9,126 HKD per carat. The same specification in lab grown form lists at a median of about HK$5,346 HKD per carat. Over the last 30 days the median price moved +2.1% and the number of listings moved +8.9%.

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

145

Lowest Price

HK$2,261 HKD

Highest Price

HK$12,915 HKD

Average Price

HK$4,512 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

28.4%

Price Spread

33.3%

30-Day Price Trend

+2.1%

30-Day Supply Change

+8.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,007/ct

10th Percentile

$731

Median

$1,007

90th Percentile

$1,464

Score Distribution

427 diamonds scored across 4 quality tiers

Excellent

31 (7.3%)

Very Good

173 (40.5%)

Good

43 (10.1%)

Average

180 (42.2%)

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Consider Instead

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

Lab-Grown I SI2Same specifications, lab-grown origin

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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