Is Leo's Birthstone Ruby or Onyx?

It depends on which method you use to determine the birthstone for Leo.

July 23-Aug. 22 is the Zodiac sign of Leo. The stone that is designated for this zodiac sign is Onyx.

However, if you are talking about birthstones, you have to go by the month: July's birthstone is Ruby, and August's stone is Peridot.

If you go by months - and Leo covers two months - you would then have to look for which month your birthdate falls under that is covered by the Leo sign. Once you do, you also can choose which list of birthstones to go for: Traditional, Modern, Mystical, or Ayurvedic.

The Traditional for July is: Ruby, Onyx

July in Modern, Mystical, and Ayurvedic: Ruby

If your birthdate falls in August, the Traditional for it is: Sardonyx, Carnelian

Modern for August: Peridot

Mystical for August: Diamond

Ayurvedic for August: Sapphire