Lot 29: 22ct. Australian Boulder Opal Cabochon
January 14, 2017
Bozeman, MT, USALive Auction
Description: This is an Australian Boulder Opal cabochon. This opal was mined in the Outback of Australia. The opal shows wonderful diffraction with deep, rich colors of blue, red, and purple. The opal cabochon is in good condition. It measures .75" x .9" and weighs 22 carats.