カットされていないダイヤモンドは輝きはしない。の英語

A diamond that hasn't been cut doesn't shine.

an uncut diamond

That diamond is not genuine.

That diamond is not real.

This isn't a real diamond.

The diamond sparkled.

Nothing is as hard as a diamond.

Diamond is essentially hard.

You've never seen a genuine diamond.

a diamond in the rough

Nothing is as hard as a diamond.

There's nothing harder than a diamond.

We don't deal in uncertificated diamonds.

came upon the diamond unawares

cut diamonds

The hardness of diamond is such that it can cut glass.

consisting of diamonds or resembling diamonds

Nothing can compare with diamond for hardness.

A diamond of this size is unique.

It seems that the diamond is real.

a very hard small point made from a diamond

a bad diamond

a valuable diamond

of the state of shining of a diamond, brilliant

cut a diamond

the glitter of diamonds

a diamond's fire

cut diamonds in many different shapes

These diamonds are often called "blood diamonds."

This is an imitation diamond.