I like it, especially with
Topsy as a nickname. It reminds me of
Topaz Mortmain of
I Capture the Castle, who is an awesome (if eccentric) character. Plus, it's my mum's birthstone, so I think of it as "for her" in a way, too.
Topaz is really nice, and I'd take it over most 'classic' names any day. ;)
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We shall be free.
A revolution without dancing is a revolution not worth having.