Gaze deep into an opal and you’d be hard-pressed to disagree with the ancients that you were looking at a rainbow trapped within a stone. Its spectacular shifting hues (known as play-of-color)…
Gaze deep into an opal and you’d be hard-pressed to disagree with the ancients that you were looking at a rainbow trapped within a stone. Its spectacular shifting hues (known as play-of-color)…