1.00 - 1.49ct G I1 Lab Grown Cushion

As of April 2026, there are 24 lab grown cushion diamonds with G color and I1 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from ¥27,313 JPY to ¥761,803 JPY, with an average of ¥251,547 JPY.

Last updated: April 2026

Available
24
Lowest Price
¥27,313 JPY
Highest Price
¥761,803 JPY
Average Price
¥251,547 JPY

Market Intelligence

Retailers Selling
5
Cross Retailer %
33.3%
Price Spread
54.1%
30-Day Price Trend
N/A
30-Day Supply Change
N/A
Volatility (30d)
N/A

Price Range

Price per carat distribution across retailers

$1,478/ct
10th Percentile
$840
Median
$1,478
90th Percentile
$2,675

Score Distribution

24 diamonds scored across 3 quality tiers

Very Good
4 (16.7%)
Good
10 (41.7%)
Average
10 (41.7%)

Find Your Diamond

Search 24 G I1 cushion diamonds and compare prices.

Search Diamonds

Consider Instead

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

H I1H colour is visually identical to G to the naked eye
Save 6%

Related Specifications

D IFD VVS1D VVS2D VS1D VS2D SI1E IFE VVS1E VVS2E VS1E VS2E SI1F IFF VVS1F VVS2F VS1F VS2F SI1G IFG VVS1G VVS2G VS1G VS2G SI1H IFH VVS1H VVS2H VS1H VS2H SI1I IFI VVS1I VVS2I VS1I VS2I SI1