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Australian Semi Black Opal Gemstone 1.2cts N6 Body Tone B1 Brightness – Opal Fever Mate
Opal bodytone and brightness scale - Black Opal Direct
Opal bodytone and brightness scale - Black Opal Direct
N1 Body Tone Solid Black Opal Pendant Untreated Solid Black - Etsy
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Semi Black Opal Gemstone 0.99cts N5 Body Tone B2 Brightness Amazing Ne – Opal Fever Mate
Opal Bodytone and Opal brightness scale explained - YouTube
Australian Semi Black Opal Gemstone 2.6cts N7 Body Tone B1 Gem Grade B – Opal Fever Mate
Opals classification and value
1.30 CT LIGHTNING RIDGE MILKY OPAL BODY TONE N6 JJ178
Australian Semi Black Opal Gemstone 3.4cts N7 Body Tone B3 Brightness – Opal Fever Mate
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Opal Bodytone and Opal brightness scale explained - YouTube
25 ct black opal. Drastic body tone changes. Is this Broad Flash? : r/Opals
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Australian Semi Black Opal Gemstone 2.48cts N5 Body Tone B3 Brightness – Opal Fever Mate
Opal Body Tone
Australian Black Opal Gemstone 7cts Mulga™ Field N2 Body Tone B2 Brigh – Opal Fever Mate
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About Opal– Global Opals
Australian Semi Black Opal Gemstone 1.2cts N6 Body Tone B1 Brightness – Opal Fever Mate
Opal Bodytone explained for the grading of opal by blackopaldirect.com - YouTube
Australian Semi Black Opal Gemstone 1.9cts Gem Grade N5 Body Tone B2 B – Opal Fever Mate
