Gaia is pronounced just like "Maya" which is how I'd pronounce "Maia." You'll always have someone say it wrong, but i think it's safe for the majority of people.
I would guess Maya, but I don't understand why, when there is an easy way to spell a name that has an obvious pronunciation, you would deliberately choose another spelling that would confuse people.
Re: Would you know how to pronouce...
To me it's pretty clearly My-uh
I think's it's an acceptable alternate spelling to Maya or Mya
Thanks, ladies. DH and I really like it spelled that way, and I wanted to see if most people would know how to pronounce it.
this.
This. I prefer the spelling Mya.