How much does a 1.00 to 1.49ct F SI1 natural cushion diamond cost?

As of September 2026, 1.00 to 1.49ct F SI1 natural cushion diamonds typically cost $2,712 NZD to $8,072 NZD, with a median price of $4,673 NZD. There are currently 1,118 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI1 cushion diamond?

Compare prices across retailers on Carat Hunter to see all your options.

1.00 to 1.49ct F SI1 Natural Cushion

Quick answer

As of September 2026, there are 1,118 natural cushion diamonds with F colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,712 NZD to $8,072 NZD, with a median of $4,673 NZD. At least 54 retailers stock this exact specification. Half of all listings fall between $3,232 NZD and $5,683 NZD per carat. The same specification in lab grown form lists at a median of about $732 NZD per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Cushion natural stones in the index: 2,792 USD per carat, +1.1% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

1,118

Lowest Price

$1,560 NZD

Highest Price

$18,903 NZD

Average Price

$5,114 NZD

Market Intelligence

Retailers Selling

Price Spread

57.5%

Price Range

Price per carat distribution across retailers

$2,560/ct

10th Percentile

$1,604

Median

$2,560

90th Percentile

$4,420

Score Distribution

1.1K diamonds scored across 4 quality tiers

Excellent

169 (15.1%)

Very Good

281 (25.1%)

Good

364 (32.6%)

Average

304 (27.2%)

Find Your Diamond

Search 1,118 F SI1 cushion diamonds and compare prices.

Search Diamonds

Consider Instead

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

F SI2SI2 inclusions are not visible without magnification

Save 14%

Lab-Grown F SI1Same specifications, lab-grown origin

Save 83%

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