buying opal on the opal fields of Australia. Opal cutters and suppliers of gem opal to the trade. Have a retail gallery of opal and opal jewelry in Spring Green, Wi. The wholesale business started in 1970 and the retail business in April of 2010. We carry all types of opa. Black, Boulder, White, Crystal, Treated Matrix, Honey Matrix, Koroit Boulder Opal, Ethiopian Opal and Mexican opal. Also buyers of Silver and Gold.