A set of three small boulder opals with bright colours on a dark background / body tone.

• 4.47 carats (total).
• Left, 7.7 x  5.4 mm / 0.30" x 0.21".
• 2.5 mm / 0.09" thick.
• Middle, 9.3 x 6.5 mm / 0.36" x 0.25".
•  3.4 mm / 0.13" thick.
• Right,  6.3 x 6.1 mm / 0.24" x 0.24".
•  3.7 mm / 0.14" thick.
• Natural solid boulder opals.
  
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.