How much does a 1.00 to 1.49ct F SI2 natural cushion diamond cost?

As of September 2026, 1.00 to 1.49ct F SI2 natural cushion diamonds typically cost €1,199 EUR to €3,826 EUR, with a median price of €2,152 EUR. There are currently 705 diamonds matching this specification available across retailers.

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

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

1.00 to 1.49ct F SI2 Natural Cushion

Quick answer

As of September 2026, there are 705 natural cushion diamonds with F colour and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run €1,199 EUR to €3,826 EUR, with a median of €2,152 EUR. At least 48 retailers stock this exact specification. Half of all listings fall between €1,430 EUR and €2,544 EUR per carat. The same specification in lab grown form lists at a median of about €1,154 EUR 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

705

Lowest Price

€346 EUR

Highest Price

€8,290 EUR

Average Price

€2,320 EUR

Market Intelligence

Retailers Selling

Price Spread

58.3%

Price Range

Price per carat distribution across retailers

$2,218/ct

10th Percentile

$1,365

Median

$2,218

90th Percentile

$3,830

Score Distribution

705 diamonds scored across 4 quality tiers

Excellent

104 (14.8%)

Very Good

149 (21.1%)

Good

230 (32.6%)

Average

222 (31.5%)

Find Your Diamond

Search 705 F SI2 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 I1I1 inclusions are not visible without magnification

Save 8%

Lab-Grown F SI2Same specifications, lab-grown origin

Save 11%

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