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<p>[QUOTE=&quot;Ce BCA, post: 4550880, member: 18716&quot;]In general lab rubies glow more brightly than mined rubies (with some exceptions).&nbsp; Technically given the tone if it is corundum it would be a pink sapphire (it&#039;s not red enough for a ruby).&nbsp; Natural rubies have inclusions which you can see under magnification, usually a 10x loupe is good enough, a binocular microscope is easier.&nbsp; You can get flawless rubies, but they are rare and one wouldn&#039;t be cut into a basic heart gem, so that would pretty much rule it out as natural.&nbsp; Other stones such as spinels, scapolite and some glass gems can also glow red so you can say for sure without testing.[/QUOTE]</p><p><br /></p>

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