How much does a 1.50 to 1.99ct M SI1 natural emerald diamond cost?

As of November 6, 2026, 1.50 to 1.99ct M SI1 natural emerald diamonds typically cost $3,010 NZD to $5,878 NZD, with a median price of $4,029 NZD. There are currently 35 diamonds matching this specification available across retailers.

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

About 40% of these diamonds are available at multiple retailers, with an average price spread of 31%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct M SI1 Natural Emerald

Quick answer

As of November 6, 2026, there are 35 natural emerald diamonds with M colour and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $3,010 NZD to $5,878 NZD, with a median of $4,029 NZD. Half of all listings fall between $2,075 NZD and $2,860 NZD per carat. Over the last 30 days the median price moved -0.6% and the number of listings moved +31.4%.

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

$2,672 NZD

Highest Price

$8,932 NZD

Average Price

$4,164 NZD

Market Intelligence

Cross Retailer %

40.0%

Price Spread

31.4%

30-Day Price Trend

-0.6%

30-Day Supply Change

+31.4%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,404/ct

10th Percentile

$1,094

Median

$1,404

90th Percentile

$1,987

Score Distribution

35 diamonds scored across 4 quality tiers

Excellent

3 (8.6%)

Very Good

14 (40.0%)

Good

12 (34.3%)

Average

6 (17.1%)

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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