Opal Services
Nicholas Kollias
Australis Gems & Jewellery is owned and operated by Nick Kollias, South Australia's recognised and registered opal valuation expert. Nick has been appointed President of the National Council of Jewellery Valuers (SA Division) and is an approved specialist opal valuer for the Australian Federal Government (Cultural Gifts Program).

As a tertiary qualified Applied Chemist and Gemmologist, Nick brings over 25 years of hands on experience in the opal industry and specialises in:
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