A set of three small boulder opals with strong blue-greens.

• 2.29 carats (total).
• Left,  6.5 x  5.1 mm / 0.25" x 0.20".
• 3 mm / 0.11" thick.
• Middle, 7.9 x 5.5 mm / 0.31" x 0.21".
•  1.9 mm / 0.07" thick.
• Right,  8.3 x 4.7 mm / 0.32" x 0.18".
•  2.8 mm / 0.11" thick.
• Natural solid boulder opals.
  
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.