I am reminded of the famous manga/anime character Sailor Moon, whose "true identity" name is 月{つき}野{の} うさぎ. So her family name 月野 literally means "moon field", but it also sounds like 月{つき}の which would mean "of the moon" or "from the moon".

This is not exactly which you asked for, which was something that means "beautiful like the moon". But perhaps it is close enough. After all, something that is "of the moon" might also be beautiful like the moon. And certainly, the surname 月野 is associated with the well-known Sailor Moon character, who is a beautiful girl character. After all, the series is called 美{び}少{しょう}女{じょ}戦{せん}士{し}セーラームーン, which translates as "Pretty Soldier Sailor Moon".

I am reminded of the famous manga/anime character Sailor Moon, whose "true identity" name is 月{つき}野{の} うさぎ (Tsukino Usagi). So her family name 月野 literally means "moon field", but it also sounds like 月{つき}の which would mean "of the moon" or "from the moon".

This is not exactly which you asked for, which was something that means "beautiful like the moon". But perhaps it is close enough. After all, something that is "of the moon" might also be beautiful like the moon. And certainly, the surname 月野 is associated with the well-known Sailor Moon character, who is a beautiful girl character. After all, the series is called 美{び}少{しょう}女{じょ}戦{せん}士{し}セーラームーン, which translates as "Pretty Soldier Sailor Moon".

In the spirit of creating names to have a certain meaning, you might also consider making up your own name. I don't know what purpose you want this word for, but Japanese given names are often created to have a certain meaning. Like how Tsukino Usagi was invented for the Sailor Moon character.

You could alter 月野 by adding the 美{び} character which means beauty to give a connotation of beautiful. For example, you could use the み reading of 美, as in the name 恵{めぐ}美{み} (Megumi), and create 月{つき}美{み} (Tsukimi). This could mean "moon beauty" or "beautiful like the moon".