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Gemstones, Minerals & Fossils
Gemstones and Minerals
Why do sapphires darken when cut?
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<blockquote data-quote="Lefty" data-source="post: 119818" data-attributes="member: 2976"><p>Nice stones there Ted <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p></p><p>Yes, it is a bit of a shame - so many sapphires look magnificent when backlit but dissapoint when finished, especially blue with a green cross.</p><p></p><p>That said, I have seen some that have finished up stunning stones that show great colour and clarity without needing any kind of backlighting.</p><p></p><p>And that's what makes a gemstone a gemstone - they are bloody hard to find and really good ones are even harder to find.</p><p></p><p>Interesting thing about the garnet, it did the opposite to sapphire - it was black without backlighting but once cabbed the red showed up nicely without needing light behind it. Different minerals I guess.</p></blockquote><p></p>
[QUOTE="Lefty, post: 119818, member: 2976"] Nice stones there Ted :) Yes, it is a bit of a shame - so many sapphires look magnificent when backlit but dissapoint when finished, especially blue with a green cross. That said, I have seen some that have finished up stunning stones that show great colour and clarity without needing any kind of backlighting. And that's what makes a gemstone a gemstone - they are bloody hard to find and really good ones are even harder to find. Interesting thing about the garnet, it did the opposite to sapphire - it was black without backlighting but once cabbed the red showed up nicely without needing light behind it. Different minerals I guess. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Why do sapphires darken when cut?
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