Black Sapphire.
In many a way, if the Black stone of Kaaba, is deemed in many a way to embody anything that is truly perfect in its ways, and in the Middle East too (and speak even of the worship somewhat, and of Muslim peoples there), the Diamond on the otherhand, did embody perfection in all, and in the Netherlands too, while with the Victorians, perfection in all, best probably envisioned in the very form of Black Sapphire, and with the Modern World on the otherhand, and retrospectively too, associating perfection in all, and with Titanium in many a way really.
Titanium:
