A set of three boulder opals with gorgeous pastel blues.

• 18.25 carats (total).
• Left, 11.2 x 9.6 mm / 0.44" x 0.37".
• 5.0 mm / 0.19" thick.
• Middle, 10.6 x 10.5 mm / 0.41" x 0.41".
• 5.6 mm / 0.22" thick.
• Right, 12.2 x 6.9 mm / 0.48" x 0.27".
• 4.6 mm / 0.18" thick.
• Natural solid boulder opals.
  
• Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
• Commercial grade.