Swaziland Sapphire Diamond Marriage Fashion Necklace Jewellery 1059

Swaziland Sapphire Diamond Marriage Fashion Necklace Jewellery   

By Aamir Mannan

Synthetic sapphire is also produced industrially from agglomerated aluminium oxide, sintered and fused (such as by hot isostatic pressing) in an inert atmosphere, yielding a transparent but slightly porous polycrystalline product.[citation needed]

In 2003 the world's production of synthetic sapphire was 250 tons (1.25 × 109 carats), mostly by the United States and Russia.] The availability of cheap synthetic sapphire unlocked many industrial uses for this unique material: