Could we compare two diamonds that both weigh one carat?

How to say “Could we compare two diamonds that both weigh one carat?” in Japanese

In Japanese

どちらも1(いち)カラットのダイヤを、並(なら)べて見(み)せてもらえますか？

Dochira mo ichi karatto no daiya o, narabete misete moraemasu ka?

Could we compare two diamonds that both weigh one carat? in other languages