3-Initial Monogram Jewelry?

so for jewelry IF you wanted to use 3 letters would your first letter still be the bigger one if its personal? than your middle and last name on either side? like
Amy Bettie Catherine, for jewelry taht isn't designed to be passed down BAC? Or it would still be last name in middle
NO! a monogram is 3 initials...first letter of first name, first letter of last name (sometimes larger size), first letter of middle name or maiden name. monograms are ALWAYS in that order.

amy bettie catherine is A C B...always.

if you want to have 1 initial, you can have first letter of first name (personal) or first letter of last name (public). the word "monogram" refers to your 3 initials. http://en.wikipedia.org/wiki/Monogram


and then for those whom do not have 3 initials... what do they do?!
^honestly, I have no idea...I've seen 4 initials before, but never 2
 
Here's a photo of my inherited monogram ring. It's been in my family for 4 generations. I wear it on my pinky finger on my right hand.

ring1-1.jpg