How much does a 0.50 to 0.74ct K SI1 natural emerald diamond cost?

As of November 6, 2026, 0.50 to 0.74ct K SI1 natural emerald diamonds typically cost $552 AUD to $1,510 AUD, with a median price of $871 AUD. There are currently 81 diamonds matching this specification available across retailers.

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

About 35% of these diamonds are available at multiple retailers, with an average price spread of 52%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct K SI1 Natural Emerald

Quick answer

As of November 6, 2026, there are 81 natural emerald diamonds with K colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $552 AUD to $1,510 AUD, with a median of $871 AUD. Half of all listings fall between $1,165 AUD and $1,957 AUD per carat. The same specification in lab grown form lists at a median of about $1,900 AUD per carat. Over the last 30 days the median price moved +1.4% and the number of listings moved +4.8%.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Emerald natural stones in the index: 2,109 USD per carat, -8.1% month on month. See the full index release

Figures come from current listings across more than 125 retailers. The index is a monthly release.

Last updated: November 6, 2026

Available

Lowest Price

$407 AUD

Highest Price

$2,513 AUD

Average Price

$980 AUD

Market Intelligence

Cross Retailer %

34.6%

Price Spread

52.1%

30-Day Price Trend

+1.4%

30-Day Supply Change

+4.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,064/ct

10th Percentile

$666

Median

$1,064

90th Percentile

$1,613

Score Distribution

81 diamonds scored across 4 quality tiers

Excellent

13 (16.0%)

Very Good

16 (19.8%)

Good

17 (21.0%)

Average

35 (43.2%)

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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