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Australian Opals

Own a piece of Australia

Come in to see the award-winning collection, be educated on Australian Opals and how they were formed. Our staff have over 150 years experience in Australian opals and jewellery design.

The Ultimate Gift

One of a kind piece of Australian History

These beautiful gemstones took millions of years in the making.  They are some of the rarest, and most diverse gemstones on earth. We take these treasures and create one-of-a-kind jewellery pieces for you, no matter the occasion.

If you go anywhere for Australian Opals
make sure you come into Giulians

Be educated by experts

Come in for a truly unique experience where we educate you on one of the world’s most sought-after gemstones and how they were formed. We offer duty-free services and can deliver worldwide.

  • Only Solid Opals

  • Millions of years of Australian history

  • Uniquely Australian

  • One of Australia's Largest Collection of Opals

  • Natural, solid opals - not doublet or triplet

We Offer

Genuine and Authentic Australian Opals.
The rarest, most valuable stones in the world.

Australia’s National Gemstone

Black Opals

  • Black Opals are the most valuable and rarest form of opals on earth
  • Display many unique colours, clarity yet have recognisable patterns
  • Found in the Northwest region of NSW in the mining town of Lightning Ridge

Contemporary Jewellery designs

Boulder Opals

  • Cut into unusual or freeform shapes
  • Polished with the strong natural back retained to form part of the gem
  • One of the world’s most beautiful and versatile gems

learn more about our opals

The ‘white man in hole’

White Opals

  • Australia’s main source of white opal is mined in central South Australia
  • White opal ranges from creamy white colour to crystal or translucent
  • It is sometimes referred to as light or milk opaland versatile gems

learn more about our opals

You will be sure to find something for that someone special.

We have one of the world’s largest collections of Australian Pearls and Australian Opals.