What makes Type IIa diamonds special?
Type IIa diamonds are extremely rare in their virtual absence of nitrogen. Only approximately 1% of all diamonds are virtually nitrogen-free and only virtually nitrogen-free diamonds can become Bellataire diamonds. It is noteworthy, though, that nitrogen-free diamonds can generally grow substantially larger than those containing nitrogen. Consequently, despite their tiny numbers in the diamond universe, Type IIa’s comprise a relatively large percentage of the greatest diamonds ever found. The Star of Sierra Leone and the Jonker are among Bellataire’s classy chemical cousins.
