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

Modern birthstone

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

Traditional birthstone

The traditional birthstone list (drawing from older European and Polish gem-month associations) for April includes: Diamond, Sapphire.

Where Zultanite fits

Not an official April birthstone, though Zultanite is sometimes proposed as an alternative for those preferring color-change to diamond’s colorless brilliance.

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.