Birthstones — A Guide to the World's Most Meaningful Gems (Featuring Opal)
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Every month of the year is represented by a birthstone — a gem believed to carry special meaning, energy, and connection for those born under it. From the deep red of January's garnet to the icy blue of December's tanzanite, birthstones have been treasured across cultures for thousands of years. But of all twelve, none is quite as extraordinary as October's birthstone: the opal.
A Brief History of Birthstones
The tradition of birthstones dates back to ancient times, with roots in the biblical Breastplate of Aaron — a ceremonial garment set with twelve gemstones representing the twelve tribes of Israel. Over centuries, the association between gems and months evolved, and in 1912 the American National Association of Jewelers formalised the modern birthstone list. It has been updated a handful of times since, but opal has held its place as October's stone for over a century.
The Birthstones at a Glance
- January — Garnet
- February — Amethyst
- March — Aquamarine
- April — Diamond
- May — Emerald
- June — Pearl, Alexandrite
- July — Ruby
- August — Peridot, Spinel
- September — Sapphire
- October — Opal, Tourmaline
- November — Citrine, Topaz
- December — Tanzanite, Zircon, Turquoise
June's Birthstone: Pearl
June is one of only a few months with two birthstones, and pearl is its most iconic. Unlike any other gem, pearls are created entirely by a living creature — formed layer by layer inside a mollusc over years, emerging as lustrous spheres of timeless beauty. Pearls symbolise purity, wisdom, and grace, and have been worn by royalty across every culture for thousands of years. Australia has a proud pearling heritage, centred around Broome in Western Australia, and is today the world's leading producer of South Sea pearls — among the largest and most lustrous in the world. Explore our Mabe Pearl collection and our Australian Opals & Pearls collection for beautiful pearl pieces ethically sourced from Australian waters.
October's Birthstone: Opal
No gemstone on earth displays colour quite like opal. Unlike other gems that owe their beauty to a single hue, opal plays with light — shifting through reds, greens, blues, golds, and purples in a phenomenon known as play-of-colour. Each stone is entirely unique; no two opals are ever the same.
Australia is the world's premier source of fine opal, producing over 95% of the global supply. From the dusty fields of Coober Pedy in South Australia to the ancient ironstone boulders of Queensland, Australian opals are celebrated by collectors and jewellers worldwide for their unmatched brilliance and diversity.
Opal has long been associated with creativity, inspiration, and emotional depth. In ancient Rome, it was considered the most precious of all gems — a stone that contained the fire of ruby, the sea of emerald, and the sky of sapphire all at once.
Choosing an Opal Birthstone Gift
Whether you're shopping for an October birthday or simply drawn to opal's extraordinary beauty, there are several types to consider:
- Solid opals — the most prized, cut directly from natural opal rock with no backing. Browse our Australian Solid Opals collection.
- Doublets — a thin slice of natural opal bonded to a dark backing to enhance colour. Shop our Australian Opal Doublet Cabochons.
- Triplets — a natural opal slice with a backing and a clear protective cap, offering great colour at an accessible price point. Explore our Australian Opal Triplets.
- Matrix opals — natural host rock with opal running through it. Discover our Andamooka Opal Matrix collection.
Looking for a finished piece? Explore our Australian Opal Pendants, Opal Rings, and Opal Earrings — all set with genuine Australian opals, ethically sourced and ready to gift.
At Opal Essence, all our opals are ethically sourced directly from Australian opal fields. Whether you're looking for a loose stone for a custom setting or a finished piece of jewellery, we'd love to help you find the perfect opal.
A Note on Jade
While jade doesn't appear on the modern birthstone list, it holds deep cultural significance across Asia and the Pacific as a stone of wisdom, protection, and good fortune — and makes a meaningful gift for any occasion. Explore our Australian Nephrite Jade collection to discover this extraordinary stone.
Contact Opal Essence for more information or to view our current collection.