My friend and I watch the ABC  show "Revenage" it was great when I found this pendant/charm on line.  I was not to  sure about the size/lentgh because I don't know what 6.5mm is?  but ordered it and when it arrived I was pleasantly surprised!  I gave it to my friend on her brithday...she started to cry what a wonderful item!  It's about 1 1/" inches in lentgh, great quality doesn't feel thin and cheap. Must order it! We LOVE IT!