How big is a 1.5 carat square cushion diamond?

A 1.5 carat square cushion diamond typically measures about 6.6 x 6.4 mm, based on the stones in our stock today. Exact measurements are on each stone's certificate.

How much does a 1.5 carat square cushion natural diamond cost?

Today our 1.5 carat square cushion natural diamonds range from $3,508 to $55,286, across 1,510 stones. Colour, clarity, cut and the exact carat weight make the difference.

Should I choose a natural or lab grown 1.5 carat square cushion diamond?

A natural diamond is formed over billions of years and each one is rare; many buyers value that origin. A lab grown diamond of the same grades costs far less. Today the lowest priced 1.5 carat square cushion diamond in our stock is $3,508 natural, against $609 lab grown. Both are graded on the same 4Cs and come with a certificate.

What colour and clarity should a 1.5 carat square cushion diamond be?

Colour and inclusions start to show more at this size, so G or better and VS2 or better are worth considering, particularly in step cuts.

1.5 Carat Square Cushion Natural Diamonds

Browse 1,510 certified 1.5 carat square cushion natural diamonds, each with an independent grading report and prices from $3,508. Every stone formed in the earth over billions of years, and stock updates daily.