How much does a 1.50 to 1.99ct K SI1 natural pear diamond cost?

As of November 7, 2026, 1.50 to 1.99ct K SI1 natural pear diamonds typically cost $3,121 AUD to $9,197 AUD, with a median price of $4,989 AUD. There are currently 330 diamonds matching this specification available across retailers.

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

About 47% of these diamonds are available at multiple retailers, with an average price spread of 66%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct K SI1 Natural Pear

Quick answer

As of November 7, 2026, there are 330 natural pear diamonds with K colour and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $3,121 AUD to $9,197 AUD, with a median of $4,989 AUD. Half of all listings fall between $2,372 AUD and $4,528 AUD per carat. The same specification in lab grown form lists at a median of about $1,152 AUD per carat. Over the last 30 days the median price moved +0.4% and the number of listings moved +11.9%.

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. Pear natural stones in the index: 2,261 USD per carat, -2.3% 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 7, 2026

Available

330

Lowest Price

$2,378 AUD

Highest Price

$21,668 AUD

Average Price

$5,665 AUD

Market Intelligence

Cross Retailer %

47.3%

Price Spread

65.9%

30-Day Price Trend

+0.4%

30-Day Supply Change

+11.9%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,246/ct

10th Percentile

$1,372

Median

$2,246

90th Percentile

$4,001

Score Distribution

330 diamonds scored across 4 quality tiers

Excellent

80 (24.2%)

Very Good

109 (33.0%)

Good

59 (17.9%)

Average

82 (24.8%)

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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