0.63ct 6.8x4.3 Purple Nebula Sapphire Pear

0.63ct Purple Opalescent Sapphire, pear, 6.8x4.3x2.7mm.

At 0.63ct, this is a workable centre stone for a delicate solitaire setting.

The opalescence in these sapphires comes from light scattering off fine oriented inclusions within the crystal — silk that gives the surface a soft, diffuse glow rather than the sharp reflection you'd expect from a clean stone. It's a physical property of the microstructure, not a treatment effect, and it's what makes these stones a different proposition from standard pink or purple sapphires.

Treatment: None — unheated and unenhanced. Clarity: Included - hazy or silk inclusions visible to the naked eye. Origin: Madagascar.