Rare patterns like Harlequin (large distinct patches) or Flagstone significantly increase value. ⚒️ Main Types of Opals Opal Quality Factors | Types of Opal - GIA
Buying an opal requires understanding a complex set of value factors, as these "living" stones do not follow the standard grading rules of diamonds. A high-quality opal is valued for its , body tone , and play-of-color rather than just size. 💎 Primary Value Factors buy opal
Red is the rarest and most expensive, followed by orange, yellow, green, and blue. Rare patterns like Harlequin (large distinct patches) or
