Gilson Opal
Rough Resin Free Created Opals
Black, White and Crystal Opals with a Green or Multicolored Pattern of Play-of-Color.
Banded Gilson-like Opal
Resin Free Created Opal
Black Gilson-like Opal
Resin Free Created Opal
Black Gilson-like Opal
Resin Free Created Opal
Translucent Gilson-like Opal
Resin Free Created Opal
Gilson-like Crystal Opal
Resin Free Created Opal
Translucent Gilson-like Opal
Resin Free Created Opal
White Gilson-like Opal
Resin Free Created Opal
White Gilson-like Opal
Resin Free Created Opal
Blue Gilson-like Opal
Resin Free Created Opal
Blue Gilson-like Opal
Resin Free Created Opal