A set of four boulder opals with interesting patterning a flashes of pink/red.

• 19.80 carats (total).
• Left, 15 x 8.4 mm / 0.59" x 0.33".
• 2.7 mm / 0.10" thick.
• Middle left, 12.5 x 6.7 mm / 0.49" x 0.26".
• 2.7 mm / 0.10" thick.
• Middle right, 14.8 x 10.7 mm / 0.58" x 0.42".
• 3.2 mm / 0.12" thick.
• Right, 29.3 x 8.3 mm / 1.15" x 0.32".
• 4.3 mm / 0.16" thick.
• Natural solid boulder opals.
  
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Lower commercial grade.
• Matching 4.67 Ct pair also available.