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Meet Mark

Mark is also known as the "Opal Hunter" and was born and raised in NSW Outback Australia. He has vast international gemstone expertise having spent many years as the International Colour Gemstone Association (ICA) member and president. He is also a member of the Australian Opal & Gem Industry Association and Jewellers Association of Australia. What has made Mark a success is his experience and training to see colors and tones - a very useful trait for a gemstone dealer. While Mark still calls Australia home he has traveled extensively all over the world engaged in the gemstone trade.

Favorite Quote

Mark loves his Aussie slang "G day"

Mark On the Air

Time Zone


Of course opals are his favorite gemstone because they show all the colors of the rainbow in one stone and are an Australian specialty.


This gemstone is primarily mined in Australia and stones come in a full spectrum of color. The most common are the milky white and green stones while the red against black are the most rare. Opals are valued by the fire or play of color when looked at from different angles. Deposits of these stones are also found in the United States, Czech Republic, Turkey, Indonesia, Brazil, Ethiopia, and Guatemala.

Learn more at GemU
  • Gem Shopping Network, Inc., Jewelers  Retail, Duluth, GA
  • American Gem Trade Association
  • Diamond Council of America
  • Jewelers Vigilance Committee

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