I already have the white MOP and it’s my favorite. I’d really like a second pendant… but not sure which to choose. I heard the Guilloche scratches really easily. Also — are there any other stones you’d recommend for the pendant other than solid gold or diamond? I just want something that will match almost anything and is good for daily wear. Even though MOP is supposedly delicate it hasn’t done me wrong so far. I’m not the biggest fan of onyx also so I think that one is off the table. Any suggestions?