October’s Birthstone: Opal
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If you were born in October, your birthstone is one of the most changeable stones there is.
Opal never looks quite the same twice. In one light it can appear quiet and pale; turn it slightly and green, blue, orange or pink can flare across its surface. This shifting colour is called play-of-colour. It is not a coating or a reflection from the setting, but light moving through the stone itself.
Opal is made from hydrated silica. Inside a good precious opal, tiny spheres of silica are arranged closely enough to bend light as it passes through. Different arrangements produce different colours, which is why no two stones show exactly the same pattern.
It is a stone that rewards looking twice.
Where opal comes from and why it matters
Australia has long been the most important source of fine opal, particularly the white, black and boulder opals that are prized for their colour. Ethiopian opal has also become widely available in recent years, often showing bright flashes of green, blue and orange.
The character of an opal is not only in its colour, but in how that colour moves. Some show tiny pinpoints of light; others have broader patches that appear and disappear as the stone turns. A small opal can hold an extraordinary amount of colour.
For a ring, I look for a stone with a clear, lively flash rather than one that needs direct sunlight to show itself. It should have something to say in ordinary daylight.
Why opal suits silver
Opal works beautifully with silver because silver gives the stone room to change. A bright polished setting can make the flashes feel sharper; a softly hammered surface keeps the overall effect quieter and more tactile.
The colour in opal is never fixed, and the hand-hammered silver band has the same quality. Its surface changes in the light too, though more subtly. Neither is perfectly uniform. Together, they make a ring that feels alive rather than overly finished.
What I’m making for October
The October ring in the Twelve Months collection is a hammered sterling silver band with an opal gypsy-set into its surface. Each band is made to order in my studio in England, then hallmarked at the London Assay Office before it is sent out. I'm more than happy to make you something bespoke too.
Opal is a softer stone than many of the traditional birthstones, so it benefits from a little care: avoid hard knocks, sudden temperature changes and harsh chemicals. Clean it gently with warm, soapy water and a soft cloth.
The Twelve Months collection is twelve handmade silver bands, one for each birthstone, made to order in my studio in England. New pieces are published monthly. Sign up to the newsletter to be told when each one goes live.