How much does a 1.00 to 1.49ct G IF lab grown cushion diamond cost?

As of September 2026, 1.00 to 1.49ct G IF lab grown cushion diamonds typically cost $703 SGD to $6,771 SGD, with a median price of $911 SGD. There are currently 8 diamonds matching this specification available across retailers.

Where can I find the best price on a G IF cushion diamond?

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

1.00 to 1.49ct G IF Lab Grown Cushion

Quick answer

As of September 2026, there are 8 lab grown cushion diamonds with G colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $703 SGD to $6,771 SGD, with a median of $911 SGD. At least 31 retailers stock this exact specification. Half of all listings fall between $749 SGD and $1,939 SGD per carat. The same specification in natural form lists at a median of about $5,999 SGD 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 lab grown stones in the index: 466 USD per carat, -14.7% 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

Lowest Price

$627 SGD

Highest Price

$7,831 SGD

Average Price

$2,840 SGD

Market Intelligence

Retailers Selling

Price Spread

110.0%

Price Range

Price per carat distribution across retailers

$853/ct

10th Percentile

$461

Median

$853

90th Percentile

$1,921

Score Distribution

8 diamonds scored across 3 quality tiers

Excellent

2 (25.0%)

Good

3 (37.5%)

Average

3 (37.5%)

Find Your Diamond

Search 8 G IF cushion diamonds and compare prices.

Search Diamonds

Consider Instead

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

G VVS1VVS1 inclusions are not visible without magnification

Save 39%

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