Opal - October birthstone of love, luck and health

The beautiful, rare and colourful gemstone opal is the birthstone of those lucky enough to be born in the month of October and also those under the astrological star sign Libra.

The most spectacular opal gemstones are found in Australia, with the rarest kind - the incredible black opal - ethically sourced from the outback town Lightning Ridge, where they are found deep underground by small teams of opal miners, some from multi-generational opal mining families.

a doublet opal gold pendant

WHAT DOES THE WORD 'OPAL' MEAN?

The name 'opal' originally comes from a Sanskrit word 'upala' that means 'precious stone', as well as a Greek word 'opallios' which translates to 'seeing a change of colour'. 

WHAT DOES OPAL SYMBOLISE?

Traditionally, opal is said to be a symbol of love, passion, desire, fidelity, harmony and seduction. For those born under the star sign Libra, it represents purity and sincerity. It is also a stone of protection, giving the wearer protection against dangerous places, fevers and infections. 

Opal can amplify existing traits, enhance self confidence, and help the owner you realise they full potential. A stone of creativity, opals help stimulate originality and bring out the wearer’s inner light and spontaneity.

A range of opal jewellery from Black Star Opal

HOW IS OPAL FORMED?

Opal is an ancient gemstone, formed millions of years ago when rain soaked the earth in arid locations in central Australia. The rainwater penetrated the ground, depositing a dissolved mineral called silica through cracks in underground rocks. After the rainwater dried up, layers of spherical silica deposits were left behind, forming opal. 

The magnificent movement of colours in an opal, its most characteristic quality, is called its 'play of colour'. This spectral phenomenon as well as opal's fantastic range of patterns are caused by diffraction of light by the silica spheres, which are tightly stacked together inside the gemstone. Different size spheres create different colours in an opal. 

TYPES OF OPAL

BLACK OPAL

Found mainly at Lightning Ridge in outback Australia, black opal is known as the most rare and valuable type of opal on earth. Black opal features a rich and vibrant colour spectrum set against a dark body tone, making it the opal of choice for some of the world's best jewellery collections and designers.

WHITE OR LIGHT OPAL

Precious white or light opal usually contains softer, more pastel colours than black opal, and is also known as milky opal.

CRYSTAL OPAL 

Crystal opal has a translucent, light body tone, similar to glass or rock crystal, so when held up to the light, some light can be seen passing through. Crystal opal can also be black or dark. 

BOULDER OPAL

Similar to black opal in appearance, colour rich boulder opal is mainly found in Western Queensland, forming in cracks and cavities inside 'boulder', which is brown-red coloured ironstone often included on the back of the polished gemstone. 

A woman wearing a range of white gold opal rings on her hand which is held up against her hair

WHAT DOES WEARING OPAL JEWELLERY DO?

Wearing opal jewellery, like opal earrings or an opal pendant, close to the face is believed to assist with eye disease, emotional stability, and memory; while wearing an opal ring is said to promote blood purification, help kidney function, ease childbirth, helps with PMS, and support the immune system.

To view our complete opal jewellery collection, please click here.