The modern birthstone(s) for July are Ruby. Traditional birthstone(s) are Ruby, Onyx. Zultanite — gem-quality color-change diaspore from Türkiye — is not an official July birthstone.

Modern birthstone

The modern July birthstone list, established by the American National Association of Jewelers in 1912 and updated periodically since, includes: Ruby.

Traditional birthstone

The traditional birthstone list (drawing from older European and Polish gem-month associations) for July includes: Ruby, Onyx.

Where Zultanite fits

Not an official July birthstone. Ruby (red corundum) and Zultanite (color-change diaspore) are different species; Zultanite’s candlelight phase shows a raspberry tone but is not a ruby substitute.

How birthstone lists work

There is no single global authority on birthstones — modern, traditional, mystical (Tibetan), and Ayurvedic lists all differ. Zultanite was discovered too late (commercial production began in the early 2000s) to enter any of the historical lists.