They say that diamonds are forever. Consider this; the "rock" on the ring
here is older than the Earth itself. It was formed in the core of an asteroid as
the solar system was just starting. It took a collision with another large body
millions of miles distant to set it on a collision course with Earth. The rock
is actually solid iron with trace elements of nickel, chromium, and others that
make it similar to the super alloys of today. It is genuine Gibeon Meteorite
that is over 4 billion years old and fell from outer space and landed in
Namibia, Africa sometime in prehistory. It has a unique crystalline structure
due to it cooling over millions of years in space. Metals native to Earth don't
have this unique structure. It is laser welded to the titanium ring. The ring
shown is 3mm wide. Every meteorite is unique and has a certificate of
authenticity.

If she's one in a million, go for a diamond; if the love you share
transcends space and time go for the meteorite!