Birthstones

3 clues
Nativity gems
Garnet and others
Gems associated with particular months
Similar answers:
Aaronbirth
Americasbirthdaycake
Andstones
Arrowstones
Astones
Belatedbirthday
Birth
Birthberth
Birthcertificate
Birthcontrol
Birthday
Birthdaycake
Birthdaycakes
Birthdaycandles
Birthdaycards
Birthdaycod
Birthdaygifts
Birthdaykick
Birthdaynewyear
Birthdayparty