Modern vs Traditional Birthstones: Why Some Months Have Two

TL;DR: "Modern" and "traditional" birthstone lists sometimes differ — for example, June's traditional stone is pearl, while alexandrite was added as a modern alternative in 1912. Neither list is more "correct" than the other; they reflect the same tradition updated over time, and either is a legitimate choice.

Where the Confusion Comes From

Birthstone traditions existed informally for centuries before the American National Association of Jewelers standardised an official list in 1912 — partly to introduce more affordable or more available alternatives alongside historically rarer stones. This created two parallel lists for several months, which is why you'll sometimes see a month listed with what looks like two unrelated stones.

The Months Where This Matters Most

June: Traditional stone is pearl; alexandrite was added in 1912 as a more durable, wearable alternative, with moonstone sometimes included as a third option.

August: Peridot is traditional; spinel was added more recently as an alternative with a wider colour range.

October: Opal is traditional; tourmaline was added in 1912, offering more durability and colour options than opal.

December: Turquoise and zircon are both traditional; tanzanite was added in 2002 by the American Gem Trade Association as a further contemporary option.

Which Should You Choose?

Neither list is more legitimate than the other — both represent genuine, recognised birthstone tradition. Practical factors are usually the better guide: alexandrite and tourmaline are considerably more durable for daily wear than pearl or opal, while the traditional stones carry more historical weight if that matters more to you than practicality.

Choosing at À Vie Diamonds

We can source either the traditional or modern option for any month, and will advise honestly on durability if daily wear matters to your brief. Get in touch to discuss.

Frequently Asked Questions

Why does my birth month have two birthstones? Modern alternatives were added to the traditional list in 1912 (and later), often to offer more durable or more affordable options alongside historically rarer stones.

Is the modern or traditional birthstone more correct? Neither — both are legitimate, recognised birthstone traditions. Choose based on durability, colour preference, or personal connection.

Last reviewed: July 2026 · À Vie Diamonds