How big is a 1.5 carat square cushion diamond?

A 1.5 carat square cushion diamond typically measures about 6.7 x 6.5 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 lab grown diamond cost?

Today our 1.5 carat square cushion lab grown diamonds range from $609 to $14,193, across 4,396 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 lab grown diamond has the same chemistry, hardness and sparkle as a natural diamond, at a fraction of the price, which is why it is a popular way to reach a larger size. Today the lowest priced 1.5 carat square cushion diamond in our stock is $609 lab grown, against $3,508 natural. 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 Lab Grown Diamonds

Browse 4,396 certified 1.5 carat square cushion lab grown diamonds, each with an independent grading report and prices from $609. Every stone is a real diamond grown in a laboratory, with the same sparkle and hardness as a natural diamond, and stock updates daily.