On the left, a natural, untreated blue sapphire. On the right, that same sapphire immersed in methylene iodide.
Blue Sapphire Faceted
On the left, a natural, untreated blue sapphire. On the right, that same sapphire immersed in methylene iodide.
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| Gemstone | Sapphire, Corundum |
| Natural or man made | Natural |
| Gem State | Faceted |
| Color | Blue |
| Transparency | Transparent |